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United States Department of Agriculture

Agricultural Research Service

Related Topics

Elaine A Backus
Crop Diseases, Pests and Genetics Research
Entomology

Phone: (559) 596-2925
Fax: (559) 596-2941

9611 S. RIVERBEND AVE.
PARLIER , CA 93648

Projects
Epidemiology and Management of Pierce's Disease and Other Maladies of Grape
Appropriated (D)
  Accession Number: 422946
Supplemental Funding to Support the EPG Conference/Workshop at the University of Florida Citrus Research and Education Center
Grant (G)
  Accession Number: 431180
Definitively Identifying Lygus Ingestion Cells in Susceptible Cotton
Specific Cooperative Agreement (S)
  Accession Number: 424844
Time-Course of Effects on Cotton Squares from Nymphal Lygus Feeding
Specific Cooperative Agreement (S)
  Accession Number: 426073
Definitively Identifying Ingestion Behaviors of Lygus Bugs on Susceptible and Resistant Cotton Plants
Trust (T)
  Accession Number: 423489

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
First finding of a dual-meaning X wave for phloem and xylem fluid ingestion: characterization of Scaphoideus titanus (Hemiptera: Cicadellidae) EPG waveforms -
Characterization of an EPG waveform library for pre-reproductive adult Lygus lineolaris and L. hesperus feeding on cotton squares -
Backus, E.A., Cervantes, F.A., Godfrey, L., Akbar, W. 2016. Characterization of an EPG waveform library for pre-reproductive adult Lygus lineolaris and L. hesperus feeding on cotton squares. Annals of the Entomological Society of America. 109:684-697.
Characterization of an EPG waveform library for redbanded stink bug, Piezodorus guildinii (Westwood) (Hemiptera: Pentatomidae), on soybean plants -
Lucini, T., Panizzi, A.R., Backus, E.A. 2016. Characterization of an EPG waveform library for redbanded stink bug, Piezodorus guildinii (Westwood) (Hemiptera: Pentatomidae), on soybean plants. Annals of the Entomological Society of America. 109:198-210.
Feeding behavior of soybean aphid (Hemiptera: Aphididae) biotype 2 on soybean PI 243540, the source of Rag2 resistance -
Todd, J.C., Mian, R.M., Backus, E.A., Finer, J.J., Redinbaugh, M.G. 2015. Feeding behavior of soybean aphid (Hemiptera: Aphididae) biotype 2 on soybean PI 243540, the source of Rag2 resistance. Journal of Economic Entomology. 109:426-433.
Lipopolysaccharide modulates the vector-pathogen interface of the xylem-limited phytopathogen, Xylella fastidiosa, the causal agent of Pierce’s disease of grapevine -
Rapicavoli, J.N., Kinsinger, N., Perring, T., Backus, E.A., Shugart, H., Johnston, C.M., Walker, S., Roper, C. 2015. Lipopolysaccharide modulates the vector-pathogen interface of the xylem-limited phytopathogen, Xylella fastidiosa, the causal agent of Pierce’s disease of grapevine. Applied and Environmental Microbiology. 81:8145-8154.
A New SAS program for behavioral analysis of electrical penetration graph data -
Ebert, T.A., Backus, E.A., Cid, M., Fereres, A., Rogers, M. 2015. A New SAS program for behavioral analysis of electrical penetration graph data. Computers and Electronics in Agriculture. 116:80-87. doi: 10.1016/j.compag.2015.06.011..
Sharpshooters may be “flying syringes:” First direct evidence of mixed egestion and salivation in inoculation of Xylella fastidiosa -
Backus, E.A., Shugart, H.J., Rogers, E.E., Morgan, J.K., Shatters, R.G. 2015. Sharpshooters may be “flying syringes:” First direct evidence of mixed egestion and salivation in inoculation of Xylella fastidiosa. American Phytopathological Society Annual Meeting. 105:S4.10.
Exploring glassy-winged sharpshooter microbiota using deep 16S rRNA sequencing from individual insects -
Rogers, E.E., Backus, E.A. 2014. Exploring glassy-winged sharpshooter microbiota using deep 16S rRNA sequencing from individual insects. CDFA Pierce's Disease Research Progress Reports. p. 8.
Direct evidence of egestion and salivation of Xylella fastidiosa suggests sharpshooters can be “flying syringes” -
Backus, E.A., Shugart, H.J., Rogers, E.E., Morgan, J.K., Shatters, R.G. 2015. Direct evidence of egestion and salivation of Xylella fastidiosa suggests sharpshooters can be “flying syringes”. Phytopathology. 105:608-620.
A new paradigm for vector inoculation of Xylella fastidiosa: Direct evidence of egestion and salivation supports that sharpshooters can be “flying syringes” -
Backus, E.A., Shugart, H.J., Rogers, E.E., Morgan, J.K., Shatters, R.G. 2014. A new paradigm for vector inoculation of Xylella fastidiosa: Direct evidence of egestion and salivation supports that sharpshooters can be “flying syringes”. In: Proceedings of the 2014 Pierce's Disease Symposium. p. 7.
Multiple, stochastic factors can determine acquisition success of the foregut-borne bacterium, Xylella fastidiosa, by a sharpshooter vector -
Backus, E.A., Rogers, E.E. 2014. Multiple, stochastic factors can determine acquisition success of the foregut-borne bacterium, Xylella fastidiosa, by a sharpshooter vector. In: Proceedings of the 2014 Pierce's Disease Symposium. p. 6.
Differential probing behavior of Blissus insularis (Hemiptera: Blissidae) on resistant and susceptible St. Augustinegrasses -
Rangasamy, M., Mcauslane, H.J., Backus, E.A., Cherry, R.H. 2015. Differential probing behavior of Blissus insularis (Hemiptera: Blissidae) on resistant and susceptible St. Augustinegrasses. Journal of Economic Entomology. 108(2):780-788.
Anterior foregut microbiota of the glassy-winged sharpshooter explored using deep 16S rRNA gene sequencing from individual insects -
Rogers, E.E., Backus, E.A. 2014. Anterior foregut microbiota of the glassy-winged sharpshooter explored using deep 16S rRNA gene sequencing from individual insects. PLoS One. 9(9):e106215.
Glassy-winged sharpshooter Microbiota explored using deep 16S rRNA sequencing from individual insects -
Rogers, E.E., Backus, E.A. 2014. Glassy-winged sharpshooter Microbiota explored using deep 16S rRNA sequencing from individual insects. In:Proceedings of the Hemipteran-Plant Interactions Symposium Abstract Book, p.76.
Glassy-winged sharpshooter can use a mechanical mechanism to inoculate Xylella fastidiosa into grapevines -
Backus, E.A., Shugart, H.J., Rogers, E.E., Morgan, J.K., Shatters, R.G. 2014. Glassy-winged sharpshooter can use a mechanical mechanism to inoculate Xylella fastidiosa into grapevines. In: Proceedings of the Hemipteran-Plant Interactions Symposium. p.89.
What is waveform library? Advances in EPG science made possible by the 3rd generation AC-DC universal monitor -
Backus, E.A., Munyaneza, J.E., Mcauslane, H., Pearson, C., Rangasamy, M., Redinbaugh, M.G., Wayadande, A. 2014. What is waveform library? Advances in EPG science made possible by the 3rd generation AC-DC universal monitor. In: Proceedings of the Hemipteran-Plant Interactions Symposium. p.39.
Time course study of feeding damage to pin head cotton squares by Lygus hesperus (Hemiptera: Miridae) -
Cervantes, F., Backus, E.A. 2014. Time course study of feeding damage to pin head cotton squares by Lygus hesperus (Hemiptera: Miridae). In: Proceedings of the Hemipteran-Plant Interactions Symposium. p.39.
Changes in behavioral responses of Lygus lineolaris (Hemiptera: Miridae) from various applied signal voltages during EPG recordings -
Cervantes, F., Backus, E.A. 2014. Changes in behavioral responses of Lygus lineolaris (Hemiptera: Miridae) from various applied signal voltages during EPG recordings. In: Proceedings of the Hemipteran-Plant Interactions Symposium. p.40.
Characterization of an EPG waveform library for Lygus spp. on cotton squares -
Cervantes, F., Backus, E.A. 2014. Characterization of an EPG waveform library for Lygus spp. on cotton squares. In: Proceedings of the Hemipteran-Plant Interactions Symposium. p.40.
A new SAS program for behavioral analysis of Electrical Penetration Graph (EPG) data -
Ebert, T., Backus, E.A., Cid, M., Rogers, M., Fereres, A. 2014. A new SAS program for behavioral analysis of Electrical Penetration Graph (EPG) data. In: Proceedings of the Hemipteran-Plant Interactions Symposium. p.32.
Behavioral plasticity in Diaphorina citri feeding on different citrus tissues -
Ebert, T., Backus, E.A., Rogers, M. 2014. Behavioral plasticity in Diaphorina citri feeding on different citrus tissues. In: Proceedings of the Hemipteran-Plant Interactions Symposium. p.32.
Characterization and correlation of EPG waveforms of Bactericera cockerelli (Hemiptera: Triozidae): variability in waveform appearance in relation to applied signal -
Pearson, C.C., Backus, E.A., Shugart, H.J., Munyaneza, J.E. 2014. Characterization and correlation of EPG waveforms of Bactericera cockerelli (Hemiptera: Triozidae): variability in waveform appearance in relation to applied signal. Annals of the Entomological Society of America. 107(3):650-666.
Potato leafhopper (Hemiptera: Cicadellidae) ecology and integrated pest management focused on alfalfa -
Chasen, E.M., Dietrich, C., Backus, E.A., Cullen, E.M. 2014. Potato leafhopper (Hemiptera: Cicadellidae) ecology and integrated pest management focused on alfalfa. Journal of Integrated Pest Management. 5:A1-A8.
Optimizing EPG settings to record blue-green sharpshooter X waves for future studies of grape host plant resistance to Xf inoculation -
Backus, E.A., Rogers, E.E. 2013. Optimizing EPG settings to record blue-green sharpshooter X waves for future studies of grape host plant resistance to Xf inoculation. CDFA Pierce's Disease Control Program Research Symposium. p. 3-10.
Characterization of Xylella fastidiosa lipopolysaccharide and its role in key steps of the disease cycle in grapevine -
Roper, C., Daugherty, M., Perring, T., Backus, E.A. 2013. Characterization of Xylella fastidiosa lipopolysaccharide and its role in key steps of the disease cycle in grapevine. p. 74 In: Pierce's Disease Research Progress Reports, California Department of Food and Agriculture. 262 pp.
Characterization of Xylella fastidiosa lipopolysaccharide and its role in key steps of the disease cycle in grapevine -
Roper, C., Cantu, D., Perring, T., Backus, E.A. 2013. Characterization of Xylella fastidiosa lipopolysaccharide and its role in key steps of the disease cycle in grapevine. Proceedings of the CDFA Pierce's Disease Control Program Research Symposium. p. 74-83.
Plant water stress effects on stylet probing behaviors of Homalodisca vitripennis (Hemiptera: Cicadellidae) associated with acquisition and inoculation of the bacterium Xylella fastidiosa -
Krugner, R., Backus, E.A. 2014. Plant water stress effects on stylet probing behaviors of Homalodisca vitripennis (Hemiptera: Cicadellidae) associated with acquisition and inoculation of the bacterium Xylella fastidiosa. Journal of Economic Entomology. 107(1):66-74.
Probing behaviors of adult Asian citrus psyllid (Hemiptera: Psyllidae)are not appreciably affected by soil application of field-rate aldicarb to citrus -
Serikawa, R.H., Backus, E.A., Rogers, M.E. 2014. Probing behaviors of adult Asian citrus psyllid (Hemiptera: Psyllidae)are not appreciably affected by soil application of field-rate aldicarb to citrus. Florida Entomologist. 96:1334-1342.
Feeding-induced interactions between Nilaparvata lugens and Laodelphax striatellus: effects on feeding behavior and honeydew excretion -
Cao, T.T., Lou, Y.G., Backus, E.A., Cheng, J.A. 2013. Feeding-induced interactions between Nilaparvata lugens and Laodelphax striatellus: effects on feeding behavior and honeydew excretion. Environmental Entomology. 42:987-997.
The new, third-generation, AC-DC Electrical Penetration Graph (EPG) monitor and its usefulness for IPM research on vectors of plant pathogens -
Backus, E.A. 2013. The new, third-generation, AC-DC Electrical Penetration Graph (EPG) monitor and its usefulness for IPM research on vectors of plant pathogens. Symposium on Insect Vectors and Insect-Borne Diseases. p. 211-230.
Waveform library for chinch bugs (Hemiptera: Heteroptera: Blissidae): Characterization of Electrical Penetration Graph (EPG) waveforms at multiple input impedances -
Backus, E.A., Rangasamy, M., Stamm, M., McAuslane, H., Cherry, R. 2013. Waveform library for chinch bugs (Hemiptera: Heteroptera: Blissidae): Characterization of Electrical Penetration Graph (EPG) waveforms at multiple input impedances. Annals of the Entomological Society of America. 106:524-539.
The Leafhoppers: Anatomy, Physiology and Behavior of Feeding and Its Sensory Mediation -
Evidence that explains absence of a latent period for Xylella fastidiosa in its sharpshooter vectors -
Backus, E.A. 2012. Evidence that explains absence of a latent period for Xylella fastidiosa in its sharpshooter vectors. Entomological Society of America Annual Meeting. Available: http://esa.confex.com/esa/2012/webprogram/Papers69529.html.
Effects of plant water stress on vector feeding behaviors that control acquisition and inoculation of Xylella fastidiosa -
Backus, E.A., Krugner, R. 2013. Effects of plant water stress on vector feeding behaviors that control acquisition and inoculation of Xylella fastidiosa. p. 1.In: 2012 Pierce's Disease Research Progress Reports, California Department of Food and Agriculture, 262 pp.
Pattern of stylet penetration activity by Homalodisca vitripennis (Hemiptera: Cicadellidae) adults in relation to environmental temperature and light conditions -
Son, Y., Backus, E.A., Johnson, M., Groves, R. 2012. Pattern of stylet penetration activity by Homalodisca vitripennis (Hemiptera: Cicadellidae) adults in relation to environmental temperature and light conditions. Environmental Entomology. 41(5):1215-1230.
Effects of soil-applied imidacloprid on Asian citrus psyllid (Hemiptera: Psyllidae) feeding behavior -
Serikawa, R., Rogers, M., Backus, E.A. 2012. Effects of soil-applied imidacloprid on Asian citrus psyllid (Hemiptera: Psyllidae) feeding behavior. Journal of Economic Entomology. 105(5):1492-1502.
Characterization of EPG waveforms for the tea green leafhopper, Empoasca vitis Göthe (Hemiptera: Cicadellidae), on tea plants and their correlation with stylet activities -
Jin, S., Chen, Z., Backus, E.A., Sun, X.L., Xiao, B. 2012. Characterization of EPG waveforms for the tea green leafhopper, Empoasca vitis Göthe (Hemiptera: Cicadellidae), on tea plants and their correlation with stylet activities. Journal of Insect Physiology. 58:1235-1244.
Location of the mechanism of resistance to Amphorophora agathonica (Hemiptera: Aphididae) in red raspberry -
Lightle, D., Dossett, M., Backus, E.A., Lee, J.C. 2012. Location of the mechanism of resistance to Amphorophora agathonica (Hemiptera: Aphididae) in red raspberry. Journal of Economic Entomology. 105:1465-1470.
Effects of plant water stress on vector feeding behaviors that control acquisition and inoculation of Xylella fastidiosa -
Backus, E.A., Krugner, R. 2012. Effects of plant water stress on vector feeding behaviors that control acquisition and inoculation of Xylella fastidiosa. Phytopathology. 102(S4):8.
Sharpshooter feeding behavior in relation to transmission of Xylella fastidiosa: a model for foregut-borne transmission mechanisms -
Backus, E.A. 2016. Sharpshooter feeding behavior in relation to transmission of Xylella fastidiosa: a model for foregut-borne transmission mechanisms. In: Brown, J.K., editor. Vector-Mediated Transmission of Plant Pathogens. St. Paul, MN: American Phytopathological Society Press. p. 175-194.
Salivary enzymes are injected into xylem by the glassy-winged sharpshooter, a vector of Xylella fastidiosa -
Backus, E.A., Andrews, K.B., Shugart, H., Greve, L.C., Labavitch, J.M., Alhaddad, H. 2012. Salivary enzymes are injected into xylem by the glassy-winged sharpshooter, a vector of Xylella fastidiosa. Journal of Insect Physiology. 58(7):949-959.
Effects of plant water stress and temperature on glassy-winged sharpshooter feeding in relation to transmission of Xylella fastidiosa -
Backus, E.A., Krugner, R., Son, Y., Johnson, M. 2011. Effects of plant water stress and temperature on glassy-winged sharpshooter feeding in relation to transmission of Xylella fastidiosa. CDFA Pierce's Disease Control Program Research Symposium. p. 19.
Glassy-winged sharpshooter feeding does not cause air embolisms in xylem of well-watered plants. -
Backus, E.A., Lee, W. 2011. Glassy-winged sharpshooter feeding does not cause air embolisms in xylem of well-watered plants. CDFA Pierce's Disease Control Program Research Symposium. p. 19.
Correlation of an electrical penetration graph waveform with walking by Asian citrus psyllid, Diaphorina citri Kuwayama -
Youngnam, Y., Backus, E.A., Serikawa, R., Stelinski, L. 2012. Correlation of an electrical penetration graph waveform with walking by Asian citrus psyllid, Diaphorina citri Kuwayama. Florida Entomologist. 94:1084-1087.
New technologies in electrical penetration graph (EPG) monitors of insect feeding and their applications for 21st century entomology -
Backus, E.A. 2011. New technologies in electrical penetration graph (EPG) monitors of insect feeding and their applications for 21st century entomology. Entomological Society of America Annual Meeting, November 13-16, 2011, Reno, Nevada. Available:http://esa.confex.com/esa/2011/webprogram/Paper55254.html.
Waveform library for chinch bugs (Heteroptera: Blissidae): Characterization of EPG waveforms at multiple input impedances -
Rangasamy, M., Backus, E.A., Stammm, M., Heng-Moss, T., Baxendale, F., Mcauslane, H. 2011. Waveform library for chinch bugs (Heteroptera: Blissidae): Characterization of EPG waveforms at multiple input impedances. Meeting Abstract. Available: http://www.infobibos.com/Hemipteran/CD/authors.html.
Gender differences and effect of photophase on Asian citrus psyllid (Diaphorina citri Kuwayama) feeding behavior -
Serikaw, R.H., Okuma, D.M., Backus, E.A., Rogers, M. 2011. Gender differences and effect of photophase on Asian citrus psyllid (Diaphorina citri Kuwayama) feeding behavior. Meeting Abstract. Available: http://www.infobibos.com/Hemipteran/CD/authors.html.
Analysis of electrical penetration graph data: what to do with artificially terminated events? -
Ebert, T., Backus, E.A., Rogers, M. 2011. Analysis of electrical penetration graph data: what to do with artificially terminated events? Meeting Abstract. Available: http://www.infobibos.com/Hemipteran/CD/authors.html.
Cell rupture feeding by Empoasca and Lygus spp. and the causes of their plant damage -
Backus, E.A. 2011. Cell rupture feeding by Empoasca and Lygus spp. and the causes of their plant damage. Meeting Abstract. Available: http://www.infobibos.com/Hemipteran/CD/authors.html.
Support for the salivation-egestion hypothesis for Xylella fastidiosa inoculation: salivary glucanase is injected into xylem during vector feeding. -
Backus, E.A., Andrews, K., Labavitch, J., Greve, C. 2011. Support for the salivation-egestion hypothesis for Xylella fastidiosa inoculation: salivary glucanase is injected into xylem during vector feeding. Meeting Abstract. Available: http://www.infobibos.com/Hemipteran/CD/authors.html.
Support for the salivation-egestion hypothesis for Xylella fastidiosa inoculation: X-ray studies supporting the existence of egestion. -
Backus, E.A., Lee, W., Socha, J., Lee, E. 2011. Support for the salivation-egestion hypothesis for Xylella fastidiosa inoculation: X-ray studies supporting the existence of egestion. Meeting Abstract. Available: http://www.infobibos.com/Hemipteran/CD/authors.html
How do sharpshooter leafhoppers feed and survive on nutritionally depauperate xylem fluid? -
Backus, E.A. 2011. How do sharpshooter leafhoppers feed and survive on nutritionally depauperate xylem fluid? Meeting Abstract. Available: http://www.infobibos.com/Hemipteran/CD/authors.html.
Spatiotemporal colonization of Xyllela fastidiosa in its vector supports two types of egestion in the inoculation mechanism of foregut-borne plant pathogens -
Backus, E.A., Morgan, D.J. 2011. Spatiotemporal colonization of Xyllela fastidiosa in its vector supports two types of egestion in the inoculation mechanism of foregut-borne plant pathogens. Phytopathology. 101:912-922.
Comparative behavioral and protein study of salivary secretions in Homalodisca spp. sharpshooters (Hemiptera: Cicadellidae: Cicadellinae) -
Alhaddad, H., Coudron, T.A., Backus, E.A., Schreiber, F. 2011. Comparative behavioral and protein study of salivary secretions in Homalodisca spp. sharpshooters (Hemiptera: Cicadellidae: Cicadellinae). Annals of the Entomological Society of America. 104:543-552.
Characterization and correlation of new EPG waveforms for the corn leafhopper Dalbulus maidis (Hemiptera: Cicadellidae) -
Carpane, P., Wayadande, A., Backus, E.A., Dolezal, W., Fletcher, J. 2011. Characterization and correlation of new EPG waveforms for the corn leafhopper Dalbulus maidis (Hemiptera: Cicadellidae). Annals of the Entomological Society of America. 104(3):515-525.
Support for the salivation-egestion hypothesis for Xylella fastidiosa inoculation: bacterial cells can penetrate vector saliva in xylem -
Backus, E.A. 2010. Support for the salivation-egestion hypothesis for Xylella fastidiosa inoculation: bacterial cells can penetrate vector saliva in xylem. CDFA Pierce's Disease Control Program Research Symposium. p.3.
Muscle movements that control inoculation of Xylella fastidiosa are revealed by head X-rays of feeding glassy-winged sharpshooters -
Backus, E.A., Lee, W., Socha, J., Lee, E. 2010. Muscle movements that control inoculation of Xylella fastidiosa are revealed by head X-rays of feeding glassy-winged sharpshooters. Entomological Society of America Annual Meeting, Dec 12-15, 2010, San Diego, CA. Available: http://esa.confex.com/esa/2010/webprogram/Paper50391.html.
Evidence supporting the Egestion-Salivation Hypothesis for inoculation of Xylella fastidiosa by sharpshooter vectors -
Backus, E.A., Andrews, K., Labavitch, J., Greve, C.L. 2010. Evidence supporting the Egestion-Salivation Hypothesis for inoculation of Xylella fastidiosa by sharpshooter vectors. Entomological Society of America Annual Meeting, Dec 12-15, 2010, San Diego, CA. Available: http://esa.confex.com/esa/2010/webprogram/Paper50369.html
Identification and definitions of Electrical Penetration Graph (EPG) waveforms for the potato psyllid, Bactericera cockerelli, on susceptible potato. -
Pearson, C.C., Backus, E.A., Munyaneza, J.E. 2010. Identification and definitions of Electrical Penetration Graph (EPG) waveforms for the potato psyllid, Bactericera cockerelli, on susceptible potato. Entomological Society of America Annual Meeting, Dec 12-15, 2010, San Diego, CA. Available: http://esa.confex.com/esa/2010/webprogram/Paper50357.html.
Effects of the residual activity of foliar-applied insecticides on Asian citrus psyllid (Diaphorina citri) feeding behavior. -
Serikawa, R.H., Okuma, D.M., Backus, E.A., Rogers, M.E. 2010. Effects of the residual activity of foliar-applied insecticides on Asian citrus psyllid (Diaphorina citri) feeding behavior. Entomological Society of America Annual Meeting, Dec 12-15, 2010, San Diego, CA Available:http://esa.confex.com/esa/2010/webprogram/Paper50064.html.
Effects on Asian Citrus Psyllid (Diaphorina citri Kuwayama) feeding behavior of fenpropathrin and chlorpyrifos within 24 hours of application -
Serikawa, R.H., Okuma, D.M., Backus, E.A., Rogers, M.E. 2010. Effects on Asian Citrus Psyllid (Diaphorina citri Kuwayama) feeding behavior of fenpropathrin and chlorpyrifos within 24 hours of application. Entomological Society of America Annual Meeting, Dec 12-15, 2010, San Diego, CA. Available: http://esa.confex.com/esa/2010/webprogram/Paper50071.html.
Can insecticides protect citrus from HLB infection? -
Serikawa, R., Rogers, M., Backus, E.A., Stelinski, L. 2010. Can insecticides protect citrus from HLB infection? Citrus Industry: July: 6-9.
The Egestion-Salivation Hypothesis: Evidence for the role of vector saliva in the inoculation mechanism of Xylella fastidiosa -
Backus, E.A., Andrews, K., Labavitch, J., Greve, L. 2010. The Egestion-Salivation Hypothesis: Evidence for the role of vector saliva in the inoculation mechanism of Xylella fastidiosa. Phytopathology. 100(6):S9-S10.
Analyzing Feeding Behavior of Nezara viridula on Glycine max Using Electrical Penetration Graph Techniques -
Cooke, S., Mitchell, P., Backus, E.A. 2010. Analyzing Feeding Behavior of Nezara viridula on Glycine max Using Electrical Penetration Graph Techniques. Entomological Society of America Regional Meetings, Southeastern Branch. Available: http://www.entsoc.org/Southeastern/SEB_84thAnnualMeetingProgramFinal.pdf
Feeding Behaviors That Promote Inoculation Of Xylella fastidiosa Are Performed Less By Glassy-winged Sharpshooters on Resistant Vitis Candicans Than On Susceptible V. vinifera cv. ‘Chardonnay’ -
Backus, E.A., Walker, A. 2009. Feeding Behaviors That Promote Inoculation Of Xylella fastidiosa Are Performed Less By Glassy-winged Sharpshooters on Resistant Vitis Candicans Than On Susceptible V. vinifera cv. ‘Chardonnay’. CDFA Pierce's Disease Control Program Research Symposium, Dec 9-11, 2009, Sacramento, CA. Available:. http://www.cdfa.ca.gov/pdcp/Documents/Proceedings_2009/2009_Program.pdf
Towards Host Plant Resistance against Psyllid Feeding and Transmission of Ca. Liberibacter spp. -
Backus, E.A., Fereres, A., Lopes, J., Mcauslane, H., Walker, G. 2009. Towards Host Plant Resistance against Psyllid Feeding and Transmission of Ca. Liberibacter spp [abstract]. HLB-CZ Conference, McAllen, Texas, November, 2009. P3. Available: http://www.fritolayag.com/public/HLB/HLB_Abstracts.pdf
Differences in Stylet Penetration Behaviors of Glassy-winged Sharpshooters on Xylella-Resistant Vitis candicans vs. Susceptible Vitis vinifera cv. ‘Chardonnay’ Reprint Icon -
Backus, E.A., Walker, A. 2009. Differences in Stylet Penetration Behaviors of Glassy-winged Sharpshooters on Xylella-Resistant Vitis candicans vs. Susceptible Vitis vinifera cv. ‘Chardonnay’[abstract]. Entomological Society of America Annual Meeting, Dec 13-16, 2009, Indianapolis, Indiana. Paper No. 44254.
Sharpshooter X-wave: Correlation of an Electrical Penetration Graph (EPG) Waveform With Xylem Penetration Supports a Hypothesized Mechanism For Xylella Fastidiosa Inoculation Reprint Icon -
Backus, E.A., Holmes,, W., Schreiber,, F., Reardon,, B., Walker,, G. 2009. Sharpshooter X-wave: Correlation of an Electrical Penetration Graph (EPG) Waveform With Xylem Penetration Supports a Hypothesized Mechanism For Xylella Fastidiosa Inoculation. Annals of the Entomological Society of America. 102(5):847-867.
The Glassy-Winged Sharpshooter Vector of Xylella fastidiosa Harbors a Phytoreovirus -
Stenger, D.C., Sisterson, M.S., Krugner, R., Backus, E.A., Hunter, W.B. 2009. The Glassy-Winged Sharpshooter Vector of Xylella fastidiosa Harbors a Phytoreovirus. American Phytopathological Society Annual Meeting, Portland, OR. (07/09). Phytopathology 99: S124.
Patterns of spatial colonization of Xylella fastidiosa in the foregut of glassy-winged sharpshooter support egestion as part of the mechanism of inoculation Reprint Icon -
Backus, E.A., Morgan, D. 2009. Patterns of spatial colonization of Xylella fastidiosa in the foregut of glassy-winged sharpshooter support egestion as part of the mechanism of inoculation. American Phytopathological Society Annual Meeting. 2009 Supplement: S6.
Genomic Characterization of a Phytoreovirus species infecting the glassy-winged sharpshooter -
Stenger, D.C., Sisterson, M.S., Krugner, R., Backus, E.A., Hunter, W.B. 2009. Genomic Characterization of a Phytoreovirus species infecting the glassy-winged sharpshooter[abstract]. American Society for Virology Meeting. p.342.
A New Phytoreovirus Infecting the Glassy-Winged Sharpshooter (Homalodisca vitripennis) -
Stenger, D.C., Sisterson, M.S., Krugner, R., Backus, E.A., Hunter, W.B. 2009. A New Phytoreovirus Infecting the Glassy-Winged Sharpshooter (Homalodisca vitripennis). Virology. 386:469-477.
Characterization of a new Phytoreovirus species infecting the glassy-winged sharpshooter -
Stenger, D.C., Sisterson, M.S., Krugner, R., Backus, E.A., Hunter, W.B. 2008. Characterization of a new Phytoreovirus species infecting the glassy-winged sharpshooter [abstract]. CDFA Pierce's Disease Control Program Research Symposium, December 15-17, 2008, San Diego, California; Poster abstracts not published in Proceedings.
Immunohistochemistry of ß 1,4-glucanase, the major enzymatic component of glassy-winged sharpshooter saliva, in probed grape petioles Reprint Icon -
Backus, E.A., Labavitch,, J.M. 2008. Immunohistochemistry of ß 1,4-glucanase, the major enzymatic component of glassy-winged sharpshooter saliva, in probed grape petioles. Proceedings of the CDFA Pierce's Disease Control Program Research Symposium, December 15-16, 2008, San Diego, California. p.3-6.
Immunological detection of glassy-winged sharpshooter saliva in grapevine Reprint Icon -
Kingston,, K., Backus, E.A., Labavitch,, J. 2008. Immunological detection of glassy-winged sharpshooter saliva in grapevine [abstract]. Entomological Society of America Annual Meeting. Paper No. 36448.
Differential stylet penetration behaviors of two Aphis gossypii biotypes in relation to host or vector infection with Citrus tristeza virus Reprint Icon -
Gutierrez, J.D., Backus, E.A., Yokomi, R.K., Schreiber, F. 2008. Differential stylet penetration behaviors of two Aphis gossypii biotypes in relation to host or vector infection with Citrus tristeza virus. Entomological Society of America Annual Meeting. Paper No. 36418.
Time course of colonization of the glassy-winged sharpshooter precibarium by Xylella fastidiosa provides evidence for two types of egestion during inoculation -
Backus, E.A., Morgan,, D. 2008. Time course of colonization of the glassy-winged sharpshooter precibarium by Xylella fastidiosa provides evidence for two types of egestion during inoculation. Abstract No. 1584. In: Proceedings of the XXIII International Congress of Entomology CD, in Durban, South Africa, July 6-12, 2008.
New, Universal AC-DC Electrical Penetration Graph (EPG) monitor allows recording of detailed R- and emf-component waveforms for any piercing-sucking insect -
Backus, E.A., Rangasamy, M., Mcauslane, H., Redinbaugh, M.G., Wayadande, A. 2008. New, Universal AC-DC Electrical Penetration Graph (EPG) monitor allows recording of detailed R- and emf-component waveforms for any piercing-sucking insect. Abstract No. 1610. In: Proceedings of the XXIII International Congress of Entomology held in Durban, South Africa, July 6-12, 2008.
The Sharpshooter X-wave: Correlation of xylem penetration by glassy-winged sharpshooter with an electrical penetration graph (EPG) waveform -
Backus, E.A., Holmes, W., Reardon, B., Schreiber, F., Walker, G. 2008. The Sharpshooter X-wave: Correlation of xylem penetration by glassy-winged sharpshooter with an electrical penetration graph (EPG) waveform [abstract no. 1597]. In: Proceedings of the XXIII International Congress of Entomology held in Durban, South Africa, July 6-12, 2008.
Electrical Penetration Graph (EPG) monitoring of feeding by glassy-winged sharpshooter and potential application of EPG to other pathogen vectors -
Backus, E.A. 2008. Electrical Penetration Graph (EPG) monitoring of feeding by glassy-winged sharpshooter and potential application of EPG to other pathogen vectors. Abstract No. 1580 in Proceedings of the XXIII International Congress of Entomology CD, Durban, South Africa, July 6-12, 2008.
Quantitative comparison of stylet penetration behaviors of glassy-winged sharpshooter, Homalodisca vitripennis, on four crop plants important in New Zealand and the USA -
Sandanayaka, W., Backus, E.A. 2008. Quantitative comparison of stylet penetration behaviors of glassy-winged sharpshooter, Homalodisca vitripennis, on four crop plants important in New Zealand and the USA. Journal of Economic Entomology. 98:787-813.
The transmission mechanism of Xylella fastidiosa by sharpshooter vectors and a model for quantification of vector efficiency Reprint Icon -
Backus, E.A. 2008. The transmission mechanism of Xylella fastidiosa by sharpshooter vectors and a model for quantification of vector efficiency [abstract]. Entomology Society of America Pacific Branch Meeting. p.52.
Feeding Behaviors of the Glassy-Winged Sharpshooter that Control Inoculation of Xylella fastidiosa Reprint Icon -
Backus, E.A. 2007. Feeding Behaviors of the Glassy-Winged Sharpshooter that Control Inoculation of Xylella fastidiosa. In: Proceedings of the 2007 Pierce's Disease Research Symposium, December 12-14, 2007, San Diego, California. p. 116-119
Beta 1, 4-glucanase in Glassy-Winged Sharpshooter Saliva, and its Possible Role in Infection and Movement of X. fastidiosa Reprint Icon -
Backus, E.A., Labavitch,, J.M. 2007. Beta 1, 4-glucanase in Glassy-Winged Sharpshooter Saliva, and its Possible Role in Infection and Movement of X. fastidiosa. In: Proceedings of the 2007 Pierce's Disease Research Symposium, December 12-14, 2007, San Diego, California. p. 120-122.
Morphology and Histology of the Alimentary Canal of Lygus hesperus Knight (Heteroptera: Cimicomoropha: Miridae) -
Habibi, J., Coudron, T.A., Backus, E.A., Brandt, S.L., Wagner, R.M., Wright, M.K., Huesing, J.E. 2008. Morphology and histology of the alimentary canal of Lygus hesperus Knight (Heteroptera: Cimicomoropha: Miridae). Annals of the Entomological Society of America. 101(1):159-171.
The Sharpshooter X-wave: Correlation of an Electrical Penetration Graph (EPG) Waveform with Xylem Penetration During Feeding of Glassy-winged Sharpshooter Reprint Icon -
Backus, E.A., Holmes, W., Reardon,, B.J., Schreiber, F., Walker,, G.P. 2007. The Sharpshooter X-wave: Correlation of an Electrical Penetration Graph (EPG) Waveform with Xylem Penetration During Feeding of Glassy-winged Sharpshooter. Entomological Society of America Annual Meeting Abstracts. Available: http://esa.confex.com/esa/2007/techprogram/paper_30369.htm
Salivary Secretions of the Glassy-winged Sharpshooter, Homalodisca vitripennis: Novel Method of Collection and Protein Profile Reprint Icon -
Hasan, A., Backus, E.A., Schreiber, F. 2007. Salivary Secretions of the Glassy-winged Sharpshooter, Homalodisca vitripennis: Novel Method of Collection and Protein Profile [abstract]. Entomological Society of America Annual Meeting. Available: http://esa.confex.com/esa/2007/techprogram/paper_30926.htm
How to be an ideal vector: Four crucial steps in the transmission mechanism of Xylella fastidiosa by sharpshooters Reprint Icon -
Backus, E.A. 2007. How to be an ideal vector: Four crucial steps in the transmission mechanism of Xylella fastidiosa by sharpshooters. In: Proceedings of the National Viticulture Research Conference, July 18-20, 2007, Davis, CA. p. 9-10.
Competitive binding influences Xf vector load: Confocal and SEM images of GFP-expressing Xf in GWSS foreguts Reprint Icon -
Backus, E.A. 2007. Competitive binding influences Xf vector load: Confocal and SEM images of GFP-expressing Xf in GWSS foreguts. In: Proceedings of the National Viticulture Research Conference, July 9-11, 2007, Davis, CA. p. 11-12.
Competitive Binding Influences Xylella fastidiosa Vector Load: Confocal and SEM images of GFP-expressing Xf in Glassy-Winged Sharpshooter Foreguts Reprint Icon -
Backus, E.A. 2007. Competitive Binding Influences Xylella fastidiosa Vector Load: Confocal and SEM images of GFP-expressing Xf in Glassy-Winged Sharpshooter Foreguts. American Phytopathological Society. 97:S6.
WHERE, WHEN AND HOW DO INGESTION AND OTHER FEEDING BEHAVIORS OF THE GLASSY-WINGED SHARPSHOOTER ALLOW INOCULATION OF XYLELLA FASTIDIOSA Reprint Icon -
Backus, E.A. 2006. Where, when and how do ingestion and other feeding behaviors of the glassy-winged sharpshooter allow inoculation of Xylella Fastidiosa [abstract]. CDFA Pierce's Disease Control Program Research Symposium Proceedings. p252.
THE ROLE OF GLASSY-WINGED SHARPSHOOTER SALIVARY ENZYMES IN INFECTION AND MOVEMENT OF X. FASTIDIOSA Reprint Icon -
Backus, E.A., Labavitch, J.M. 2006. The role of glassy-winged sharpshooter salivary enzymes in infection and movement of X. Fastidiosa [abstract]. CDFA Pierce's Disease Control Program Research Symposium Proceedings. p. 256.
LINKING THE MODEL OF THE DEVELOPMENT OF PD IN GRAPEVINES TO AN UNDERSTANDING OF THE DYNAMICS OF GWSS TRANSMISSION OF X. FASTIDIOSA TO GRAPEVINES AND GRAPVINE GENE EXPRESSION MARKERS OF PD Reprint Icon -
Labavitch, J.M., Backus, E.A., Matthews, M., Shackel, K. 2006. Linking the model of the development of PD in grapevines to an understanding of the dynamics of GWSS transmission of X. fastidiosa to grapevines and grapvine gene expression markers of PD. CDFA Pierce's Disease Control Program Research Symposium Proceedings. p. 283.
THE CONTRIBUTION OF THE PECTIN-DEGRADING ENZYME POLYGALACTURONASE (PG) IN TRANSMISSION OF X. FASTIDIOSA TO GRAPE AND THE USE OF PG-INHIBITING PROTEINS FOR TRANSGENIC RESISTANCE TO PIERCE'S DISEASE Reprint Icon -
Labavitch, J.M., Backus, E.A., Morgan, D. 2006. The contribution of the pectin-degrading enzyme polygalacturonase (PG) in transmission of X. Fastidiosa to grape and the use of PG-inhibiting proteins for transgenic resistance to Pierce's Disease [abstract]. CDFA Pierce's Disease Control Program Research Symposium Proceedings. p. 287
SPATIAL POPULATION DYNAMICS AND OVERWINTERING BIOLOGY OF THE GLASSY-WINGED SHARPPSHOOTER, HOMALODISCA COAGULATA, IN CALIFORNIA'S SAN JOAQUIN VALLEY Reprint Icon -
Johnson, M.W., K. Daane,R. Groves, E.A. Backus. 2006. Spatial population dynamics and overwintering biology of the glassy-winged sharppshooter, Homalodisca coagulata, in California's San Joaquin Valley. CDFA Pierce's Disease Control Program Research Symposium Proceedings. p. 12
LYGUS HESPERUS (KNIGHT) (HEMIPTERA: MIRIDAE) FEEDING ON COTTON: NEW METHODS AND PARAMETERS FOR ANALYSIS OF NON-SEQUENTIAL EPG DATA. -
Backus, E.A., Cline, A.R., Serrano, M.S., Ellerseick, M.R. 2007. Lygus hesperus (Knight) (Hemiptera: miridae) Feeding on Cotton: New Methods and Parameters for Analysis of Non-sequential EPG Data. Annals of the Entomological Society of America 100(2):296-310.
SPATIAL AND TEMPORAL PROGRESSION OF XYLELLA FASTIDIOSA COLONIZATION OF THE FOREGUT OF THE GLASSY-WINGED SHARPSHOOTER DURING ACQUISITION. -
Backus, E. A. 2006. Spatial and temporal progression of Xylella fastidiosa colonization of the foregut of the glassy-winged sharpshooter during acquisition. Entomological Society of American Annual Meeting. Available: http://esa.confex.com/esa/2006/techprogram/paper_26707.htm
CORRELATIONS OF CIBARIAL AND PRECIBARIAL MUSCLE ACTIVITIES WITH EPG WAVEFORMS AND EXCRETION IN THE SMOKE-TREE SHARPSHOOTER, HOMALODISCA LITURATA (HEMIPTERA: CICADELLIDAE) -
Dugravot, S. and E. A. Backus. 2006. Correlations of cibarial and precibarial muscle activities with EPG waveforms and excretion in the smoke-tree sharpshooter, Homalodisca liturata (Hemiptera: Cicadellidae). Entomol. Soc. Am. Ann. Mtng. Available: http://esa.confex.com/esa/2006/techprogram/paper_26063.htm
ACQUISITION OF XYLELLA FASTIDIOSA BY GLASSY-WINGED SHARPSHOOTER: IMAGING OF BACTERIAL COLONIES AND THEIR LOCATIONS WITHIN THE FOREGUT OVER TIME -
Backus, E.A., Chen, J. 2006. Acquisition of Xylella fastidiosa by glassy-winged sharpshooter: Imaging of bacterial colonies and their locations within the foregut over time. [abstract] Phytopathology 96:S7.
CHARACTERIZATION OF DIGESTIVE PROTEOLYTIC ACTIVITY IN LYGUS HESPERUS KNIGHT (HEMIPTERA: MIRIDAE) -
Wright Osment, M.M., Brandt, S.L., Coudron, T.A., Wagner, R.M., Habibi, J., Backus, E.A., Huesing, J.E. 2006. Characterization of digestive proteolytic activity in Lygus hesperus Knight (Hemiptera: Miridae). Journal of Insect Physiology. 52:717-728.
ELECTRICAL PENETRATION GRAPH (EPG) MONITORING OF FEEDING BEHAVIOR OF THE GLASSY-WINGED SHARPSHOOTER, AND ITS USE IN UNDERSTANDING THE TRANSMISSION OF THE PIERCE'S DISEASE BACTERIUM, XYLELLA FASTIDIOSA -
Backus, E.A., Shugart, H., Joost, P.H. 2006. Electrical penetration graph (epg) monitoring of feeding behavior of the glassy-winged sharpshooter, and its use in understanding the transmission of the Pierce's Disease bacterium, Xylella fastidiosa. [abstract]. AgBiotech 2006 A Central California Agricultural Biotechnology Conference. P.17.
SPECIFIC STYLET ACTIVITIES BY SHARPSHOOTERS ARE INVOLVED IN INOCULATION OF XYLELLA FASTIDIOSA -
Backus, E.A., Joost, P.H., Yan, F. 2006. Specific stylet activities by sharpshooters are involved in inoculation of Xylella fastidiosa. [abstract]. AgBiotech 2006 A Central Calfornia Agricultural Biotechnology Conference p.23.
WHERE, WHEN AND HOW DO INGESTION AND OTHER FEEDING BEHAVIORS OF THE GLASSY-WINGED SHARPSHOOTER ALLOW INOCULATION OF XYLELLA FASTIDIOSA? -
Backus, E.A., Joost, P.H., Shugart, H. 2006. Where, when and how do ingestion and other feeding behaviors of the glassy-winged sharpshooter allow inoculation of Xylella fastidiosa? [abstract]. AgBiotech 2006 A Central California Agricultural Biotechnology Conference. p. 22.
CORRELATION OF STYLET ACTIVITIES BY THE GLASSY-WINGED SHARPSHOOTER, HOMALODISCA COAGULATA (SAY), WITH ELECTRICAL PENETRATION GRAPH (EPG) WAVEFORMS -
Joost, P.H., Backus, E.A., Yan, F. 2006. Correlation of stylet activities by the glassy-winged sharpshooter, Homalodisca coagulata (Say), with electrical penetration graph (EPG) waveforms. Journal of Insect Physiology. 52(3):327-337
INFLUENCE OF PLANT ONTOGENY AND ABIOTIC FACTORS ON RESISTANCE OF GLANDULAR-HAIRED ALFALFA TO THE POTATO LEAFHOPPER (HEMIPTERA: CICADELLIDAE) -
Casteel, C.L., Ranger, C.M., Backus, E.A., Ellersieck, M.R., Johnson, D.W. 2006. Influence of Plant Ontogeny and Abiotic Factors on Resistance of Glandular-Haired Alfalfa to the Potato Leafhopper (Hemiptera: Cicadellidae). Journal of Economic Entomology. 99(2):537-543.
LINKING THE MODEL OF THE DEVELOPMENT OF PIERCE'S DISEASE IN GRAPEVINES TO AN UNDERSTANDING OF THE DYNAMICS OF GWSS TRANSMISSION OF XYLELLA FASTIDIOSA TO GRAPEVINES AND GRAPEVINE GENE EXPRESSION MARKERS OF PIERCE'S DISEASE. -
Labavitch, J., Backus, E.A., Matthews, M., Shackel, K. 2005. Linking the model of the development of Pierce's Disease in grapevines to an understanding of the dynamics of gwss transmission of xylella fastidiosa to grapevines and grapevine gene expression markers of Pierce's Disease. Proceedings of the 2005 Pierce's Disease Symposium. p.34-38.
WHERE, WHEN AND HOW DO INGESTION AND OTHER FEEDING BEHAVIORS OF THE GLASSY-WINGED SHARPSHOOTER ALLOW INOCULATION OF XYLELLA FASTIDIOSA? -
Backus, E.A., Joost, P.H., Shugart, H. 2005. Where, when and how do ingestion and other feeding behaviors of the glassy-winged sharpshooter allow inoculation of xylella fastidiosa? Proceedings of the 2005 Pierce's Disease Research Symposium. p.85-88.
SPATIAL POPULATION DYNAMICS AND OVERWINTERING BIOLOGY OF THE GLASSY-WINGED SHARPSHOOTER IN CALIFORNIA'S SAN JOAQUIN VALLEY. -
Johnson, M., Daane, K., Groves, R.L., Backus, E.A. 2005. Spatial population dynamics and overwintering biology of the glassy-winged sharpshooter in California's San Joaquin Valley. Proceedings of the 2005 Pierce's Disease Research Symposium. p. 113-116.
STYLET PENETRATION BY ADULT HOMALODISCA COAGULATA ON GRAPE: ELECTRICAL PENETRATION GRAPH WAVEFORM CHARACTERIZATION, TISSUE CORRELATION, AND POSSIBLE IMPLICATIONS FOR TRANSMISSION OF XYLELLA FASTIDIOSA -
Backus, E.A., Habibi, J., Yan, F., Ellersieck, M. 2005. Stylet Penetration by Adult Homalodisca coagulata on Grape: Electrical Penetration Graph Waveform Characterization, Tissue Correlation, and Possible Implications for Transmission of Xylella fastidiosa. Annals of the Entomological Society of America. 98(6):787-813.
GLASSY-WINGED SHARPSHOOTER MIDGUT GENE EXPRESSION (HEMIPTERA: CICADELLIDAE: HOMALODISCA COAGULATA -
Hunter, W.B., Katsar, C.S., Backus, E.A. 2005. Glassy-winged Sharpshooter midgut gene expression (Hemiptera: Cicadellidae: Homalodisca coagulata [abstract]. Entomology Society America Annual Meeting. Dec. 15-18. Ft. Lauderdale, FL. Paper No. 23182.
SALIVARY GLAND GENE EXPRESSION IN GLASSY-WINGED SHARPSHOOTERS -
Sinisterra, X.H., Hunter, W.B., Katsar, C.S., Backus, E.A. 2005. Salivary gland gene expression in Glassy-winged sharpshooters [abstract]. Entomology Society America Annual Meeting. Paper No. 23209. December 15-18. Ft. Lauderdale, FL.
WHY DO WE STUDY AUCHENORRHYNCHAN FEEDING PROCESSES? -
Backus, E.A. 2005. Why do we study auchenorrhynchan feeding processes?. Proceedings of the 12th International Auchenorrhyncha Congress. p.I-6-7.
BACKGROUND ON ELECTRICAL PENETRATION GRAPH (EPG) MONITORING IN THE STUDY OF AUCHENORRHYNCHAN FEEDING PROCESSES. -
Backus, E.A. 2005. Background on electrical penetration graph (epg) monitoring in the study of auchenorrhynchan feeding processes. Proceedings of the 12th International Auchenorrhyncha Congress. p.S-1-2
SPECIFIC STYLET ACTIVITIES BY SHARPSHOOTERS ARE INVOLVED IN INOCULATION OF XYLELLA FASTIDIOSA -
Backus, E.A., Joost, P.H. 2005. Specific stylet activities by sharpshooters are involved in inoculation of xylella fastidiosa. Proceedings of the 12th. International Auchenorrhyncha Congress. p.P-1
CELL-RUPTURE FEEDING BY EMPOASCA SPP.: HOW IT CAUSES HOPPERBURN AND PLANTS DEFEND AGAINST IT. -
Ranger, C.M., Backus, E.A. 2005. Cell-rupture feeding by empoasca spp.: how it causes hopperburn and plants defend against it. Proceedings of the 12th. International Auchenorrhyncha Congress. p.S-5-6.
DISCRIMINATION BY THE POTATO LEAFHOPPER (HOMOPTERA: CICADELLIDAE) OF HOST VOLATILES FROM RESISTANT AND SUSCEPTIBLE ALFALFA, MEDICAGO SATIVA L. -
Ranger, C.M., Winter, R.K., Rottinghaus, G.E., Backus, E.A., Ellersieck, M., Johnson, D. 2005. Discrimination by the potato leafhopper (homoptera: cicadellidae) of host volatiles from resistant and susceptible alfalfa, medicago sativa l. Environmental Entomology. 34(2):271-280
SPATIAL POPULATION DYNAMICS AND OVERWINTERING BIOLOGY OF THE GLASSY-WINGED SHARPSHOOTER, HOMALODISCA COAGULATA, IN CALIFORNIA'S SAN JOAQUIN VALLEY -
Johnson, M., Groves, R.L., Backus, E.A., Daane, K. 2004. Spatial population dynamics and overwintering biology of the glassy-winged sharpshooter, Homalodisca coagulata, in California's San Joaquin Valley. Proceedings of the 2004 Pierce's Disease Research Symposium. p. 117-119.
MASS SPECTRAL CHARACTERIZATION OF FATTY ACID AMIDES FROM ALFALFA TRICHOMES AND THEIR DETERRENCY AGAINST THE POTATO LEAFHOPPER -
Ranger, C.M., Backus, E.A., Winter, R.K., Rottinghaus, G.E., Johnson, D., 2005. Mass spectral characterization of fatty acid amides from alfalfa trichomes and their deterrency against the potato leafhopper. Phytochemistry. 66:529-542
SHARPSHOOTER FEEDING BEHAVIOR IN RELATION TO TRANSMISSION OF THE PIERCE'S DISEASE BACTERIUM -
Backus, E.A., Joost, P.H., Habibi, J., Shugart, H. 2004. Sharpshooter feeding behavior in relation to transmission of the Pierce's Disease bacterium. Proceedings of CDFA Pierce's Disease Control Program Research Symposium. p. 84-87.
THE CONTRIBUTION OF THE PECTIN-DEGRADING ENZYME POLYGALACTURONASE (PG) IN TRANSMISSION OF XYLELLA FASTIDIOSA TO GRAPE AND USE OF PG-INHIBITOR PROTEINS FOR TRANSGENIC RESISTANCE TO PIERCE'S DISEASE -
Labavitch, J., Backus, E.A., Morgan, D. 2004. The contribution of the pectin-degrading enzyme polygalacturonase (pg) in transmission of xylella fastidiosa to grape and use of pg-inhibitor proteins for transgenic resistance to pierce's disease. Proceedings of CDFA Pierce's Disease Control Program Research Symposium. p. 19-21.
LINKING THE MODEL OF THE DEVELOPMENT OF PD GRAPEVINES TO AN UNDERSTANDING OF THE DYNAMICS OF GLASSY-WINGED SHARPSHOOTER TRANSMISSION OF XYLELLA FASTIDIOSA TO GRAPEVINES AND GRAPEVINE GENE EXPRESSION MARKERS OF PD -
Labavitch, J., Backus, E.A., Matthews, M., Shackel, K. 2004. Linking the model of the development of pd grapevines to an understanding of the dynamics of glassy-winged sharpshooter transmission of xylella fastidiosa to grapevines and grapevine gene expression markers of PD. Proceedings of CDFA Pierce's Disease Control Program Research Symposium. p. 22-24.
MICRO-INJECTION OF LYGUS SALIVARY GLAND PROTEINS TO SIMULATE FEEDING DAMAGE IN ALFALFA AND COTTON FLOWERS -
Shackel, K.A., Celorio-Mancera, M.P., Ahmadi, H., Greve, L.C., Tauber, L.B., Backus, E.A., Labavitch, J.M. 2005. Micro-injection of lygus salivary gland proteins to simulate feeding damage in alfalfa and cotton flowers. Archives of Insect Biochemistry and Physiology. 58: 69-83
PRELIMINARY EVALUATION OF TWO BIOTYPES OF APHIS GOSSYPII ON THE TRANSMISSION OF CITRUS TRISTEZA VIRUS. -
Yokomi, R.K., Joost, J.H., Backus, E.A. 2004. Preliminary evaluation of two biotypes of aphis gossypii on the transmission of citrus tristeza virus. [Abstract] Conference of International Organization of Citrus Virologists. p.136.
MECHANISMS OF HOPPERBURN: AN OVERVIEW OF INSECT TAXONOMY, BEHAVIOR AND PHYSIOLOGY -
Backus, E.A., Serrano, M.S., Ranger, C.M. 2004. Mechanisms of Hopperburn: An Overview of Insect Yaxonomy, Behavior and Physiology. Annual Review Of Entomology. 2005.50:125-51
BIOACTIVITY OF LIPOPHILIC METABOLITES FROM GLANDULAR TRICHOMES OF MEDICAGO SATIVA AGAINST THE POTATO LEAFHOPPER -
Ranger, C., Winter, R., Rottinghaus, G., Backus, E.A., Ellersieck, M., Johnson, D. 2004. Bioactivity of lipophilic metabolites from glandular trichomes of Medicago sativa against the potato leafhopper. Journal of Chemical Ecology. 30(10):1969-1983
VIDEO AND AC EPG WAVEFORM CORRELATIONS OF HOMALODISCA COAGULATA STYLET ACTIVITY DURING PROBING -
Joost, P.H., Backus, E.A. 2004. Video and AC EPG waveform correlations of Homalodisca coagulata stylet activity during probing. [abstract]. The 2004 ESA Annual Meeting and Exhibition. Available: http://esa.confex.com/esa/2004/techprogram/paper_17291.htm.
DISCRIMINATION BY THE POTATO LEAFHOPPER OF HOST VOLATILES FROM RESISTANT AND SUSCEPTIBLE ALFALFA -
Winter, R., Ranger, C.M., Backus, E.A., Rottinghaus, G.E. 2004. Discrimination by the potato leafhopper of host volatiles from resistant and susceptible alfalfa. [abstract]. The 2004 ESA Annual Meeting and Exhibition. Available:http://esa.confex.com/esa/2004/techprogram/paper 17632.htm
SPECIFIC STYLET ACTIVITIES BY SHARPSHOOTERS ARE INVOLVED IN INOCULATION OF XYLELLA FASTIDIOSA -
Backus, E.A., Joost, P., Yan, F. 2004. Specific stylet activities by sharpshooters are involved in inoculation of Xylella fastidiosa. Phytopathology. 94(6):S6.
CORRELATION OF STYLET PENETRATION BEHAVIORS AND AN EPG WAVEFORM WITH INOCULATION OF XYLELLA FASTIDIOSA BY THE GLASSY-WINGED SHARPSHOOTER, HOMALODISCA COAGULATA -
Backus, E.A., Habibi, J., Yan, F. 2004. Correlation of stylet penetration behaviors and an epg waveform with inoculation of Xylella fastidiosa by the glassy-winged sharpshooter, Homalodisca coagulata [Abstract]. XXII International Congress of Entomology. Paper No. PS1S732.
CORRELATIONS OF PROBING BEHAVIOR BY GLASSY-WINGED SHARPSHOOTER, HOMALODISCA COAGULATA (SAY), WITH AC ELECTRICAL PENETRATION GRAPH (EPG) WAVEFORMS USING VIDEO AND ARTIFICIAL DIETS -
Joost, P., Yan, F., Backus, E.A. 2004. Correlations of probing behavior by glassy-winged sharpshooter, Homalodisca coagulata (Say), with AC electrical penetration graph (EPG) waveforms using video and artificial diets [Abstract]. XXII International Congress of Entomology. Paper No. PS1S731.
STYLET PENETRATION BEHAVIORS OF GRAPHOCEPHALA ATROPUNCTATA (SAY): EPG WAVEFORM CHARACTERIZATION AND QUANTIFICATION -
Almeida, R.P., Backus, E.A. Stylet penetration behaviors of graphocephala atropunctata (say): epg waveform characterization and quantification. Annals of the Entomological Society of America. 97(4):838-851 (2004)
GLANDULAR TRICHOME EXTRACTS FROM Medicago sativa DETER SETTLING BY THE POTATO LEAFHOPPER, Empoasca favae -
Ranger, C.M., Backus, E.A., Winter, R.E., Rottinghaus, G.E., Ellersieck, M.R., Johnson, D.W. 2004. GLANDULAR TRICHOME EXTRACTS FROM Medicago sativa DETER SETTLING BY THE POTATO LEAFHOPPER, Empoasca fabae. Journal of Chemical Ecology. 30(5):927-943.
UNDERSTANDING GLASSY-WINGED SHARPSHOOTER FEEDING: GENE EXPRESSION IN GWSS SALIVARY GLANDS AND MIDGUTS -
Hunter, W.B., Dang, P.M., Backus, E.A., Habibi, J., Morgan, D. 2003. Understanding glassy-winged sharpshooter feeding: Gene expression in GWSS salivary glands and midguts. CDFA Pierce's Disease Control Program Research Symposium.
SHARPSHOOTER FEEDING BEHAVIOR IN RELATION TO INOCULATION OF PIERCE'S DISEASE -
Backus, E.A., Yan, F., Habibi, J. 2003. Sharpshooter feeding behavior in relation to inoculation of Pierce's Disease. [abstract] The 2003 ESA Annual Meeting and Exhibition. Available: http://esa.confex.com/esa/2003/techprogram/paper 12606.htm.
Sharpshooter feeding behavior in relation to inoculation of Pierce's Disease bacterium, Xylella fastidiosa, in grape -
Backus, E.A., Yan, F., Habibi, J. 2004. Sharpshooter feeding behavior in relation to inoculation of Pierce's Disease bacterium, Xylella fastidiosa, in grape. [abstract] Phytopathology. 93:S6.
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