Projects

BIORATIONAL CONTROL METHODS FOR INSECT PESTS OF POTATO Appropriated (D)   Accession Number: 409488

MANAGEMENT OF INSECT PESTS OF TEMPERATE TREE FRUIT CROPS Appropriated (D)   Accession Number: 409485

CHARACTERIZATION AND CHEMISTRY OF SEXUAL COMMUNICATION IN PEAR PSYLLA, CACOPSYLLA PYRICOLA Grant (G)   Accession Number: 411509

CHARACTERIZATION AND CHEMISTRY OF SEXUAL COMMUNICATION IN PEAR PSYLLA, CACOPSYLLA PYRICOLA (HOMOPTERA: PSYLLIDAE) Reimbursable (R)   Accession Number: 411089

ENHANCING BIOLOGICAL CONTROL TO STABILIZE WESTERN ORCHARD IPM SYSTEMS Reimbursable (R)   Accession Number: 415251

CHARACTERIZATION AND CHEMISTRY OF SEXUAL COMMUNICATION IN TWO PSYLLID PESTS OF PEARS Reimbursable (R)   Accession Number: 412190

ASSESSING HABITAT AND DIETARY SWITCHING BY PREDATORS IN A COVER CROP SYSTEM Reimbursable (R)   Accession Number: 413060

ASSESSING EFFECTS ON AN ALFALFA COVER CROP ON BIOLOGICAL CONTROL AND TREE NUTRITION IN ORGANIC PEAR ORCHARDS Reimbursable (R)   Accession Number: 413517

ASSESSING HABITAT AND DIETARY SWITCHING BY PREDATORS IN A COVER CROP SYSTEM Specific Cooperative Agreement (S)   Accession Number: 413395

QUANTIFYING BIOLOGICAL CONTROL OF PEAR PSYLLA IN A COVER CROP SYSTEM Trust (T)   Accession Number: 411898

VOLATILE SEX ATTRACTANTS AND REPELLENTS IN PEAR PSYLLA Trust (T)   Accession Number: 416688

EFFICACY OF DIFFERENT BAIT FORMULATIONS FOR CONTROLLING WIREWORM IN POTATOES Trust (T)   Accession Number: 412907

Publications

Effect of a Granulovirus on Mortality and Dispersal of Potato Tuber Worm (Lepidoptera: Gelechiidae) in Refrigerated Storage Warehouse Conditions - (Peer Reviewed Journal) - (09-Nov-09)

Tree Fruit IPM Programs in the Western United States: The Challenge of Enhancing Biological Control through Intensive Management - (Peer Reviewed Journal)

Jones, V.P., Unruh, T.R., Horton, D.R., Mills, N.J., Brunner, J.F., Beers, E.H., Shearer, P.W. 2009. Tree Fruit IPM Programs in the Western United States: The Challenge of Enhancing Biological Control through Intensive Management. Pest Management Science. www.interscience.wiley.com DOI 10.1002/ps.1839.

Insecticidal Activity of Entomopathogenic Fungi (Hypocreales) for Potato Psyllid, Bactericera cockerelli (Hemiptera: Triozidae): Development of Bioassay Techniques, Effect of Fungal Species and Stage of the Psyllid - (Peer Reviewed Journal)

Lacey, L.A., De La Rosa, F., Horton, D.R. 2009. Insecticidal Activity of Entomopathogenic Fungi (Hypocreales) for Potato Psyllid, Bactericera cockerelli (Hemiptera: Triozidae): Development of Bioassay Techniques, Effect of Fungal Species and Stage of the Psyllid. Biocontrol Science and Technology. 19:957-970. DOI: 10.1080/09583150903243904 http://www.informaworld.com

Anthocoris Confusus Collected from Western Washington State, with a Summary of North American Records (Hemiptera: Heteroptera: Anthocoridae) - (Peer Reviewed Journal)

Horton, D.R., Lewis, T.M. 2009. Anthocoris Confusus Collected from Western Washington State, with a Summary of North American Records (Hemiptera: Heteroptera: Anthocoridae). Proceedings of the Entomological Society of Washington 111(3):609-616.

Attraction of Cacopsylla pyricola (Hemiptera: Psyllidae) to Female Psylla in Pear Orchards - (Peer Reviewed Journal)

Brown, R.L., Landolt, P.J., Horton, D.R., Zack, R.S. 2009. Attraction of Cacopsylla pyricola (Hemiptera: Psyllidae) to Female Psylla in Pear Orchards. Environmental Entomology 38(3):815-822.

Attraction of Male Winterform Pear Psylla to Female-produced Volatiles and to Female Extracts and Evidence of Male-Male Repellency - (Peer Reviewed Journal)

Guedot, C.N., Horton, D.R., Landolt, P.J. 2009. Attraction of Male Winterform Pear Psylla to Female-produced Volatiles and to Female Extracts and Evidence of Male-Male Repellency. Entomologia Experimentalis et Applicata 130:191-197.

No Effects of an Autumn Mustard Crop on Wireworm Densities or Damaage to Potatoes in the Following Growing Season - (Trade Journal)

Horton, D.R. 2008. No Effects of an Autumn Mustard Crop on Wireworm Densities or Damaage to Potatoes in the Following Growing Season. Potato Progress. 8:1-4.

Efficacy of the Biofumigant Fungus Muscodor albus (Ascomycota: Xylariales) for Control of Codling Moth (Lepidoptera: Tortricidae) in Simulated Storage Conditions - (Peer Reviewed Journal)

Lacey, L.A., Horton, D.R., Jones, D.C., Headrick, H.L., Neven, L.G. 2009. Efficacy of the Biofumigant Fungus Muscodor albus (Ascomycota: Xylariales) for Control of Codling Moth (Lepidoptera: Tortricidae) in Simulated Storage Conditions. Journal of Economic Entomology 102:43-49.

Morphology, Genetics, and Male mating Success Compared Between Anthocoris musculus and Anthocoris antevolens (Hemiptera: Heteroptera: Anthocoridae) - (Peer Reviewed Journal)

Horton, D.R., Lewis, T.M., Thomsen Archer, K.L., Unruh, T.R. 2008. Morphology, Genetics, and Male mating Success Compared Between Anthocoris musculus and Anthocoris antevolens (Hemiptera: Heteroptera: Anthocoridae). Proceedings of the Entomological Society of Washington 110(4)pp 960-977.

Use of a New Immunomarking Method to Assess Movement by Generalist Predators Between a Cover Crop and Tree Canopy in a Pear Orchard - (Peer Reviewed Journal)

Horton, D.R., Jones, V.P., Unruh, T.R. 2009. Use of a New Immunomarking Method to Assess Movement by Generalist Predators Between a Cover Crop and Tree Canopy in a Pear Orchard. American Entomologist. Vol 55(1):49-56.

Development of Monoclonal Antibodies to Pear Psylla (Hemiptera: Psyllidae) and Evaluation of Field Predation by Two Key Predators - (Peer Reviewed Journal)

Unruh, T.R., Yu, T., Willett, L.S., Garczynski, S.F., Horton, D.R. 2008. DEVELOPMENT OF MONOCLONAL ANTIBODIES TO PEAR PSYLLA (HEMIPTERA: PSYLLIDAE) AND EVALUATION OF FIELD PREDATION BY TWO KEY PREDATORS. Annals of the Entomological Society of America. 101(5):887-898.

Attraction of Male Summerform Pear Psylla to Volatiles from Female Psylla: Effects of Female Age, Mating Status, and Presence of Host Plant - (Peer Reviewed Journal)

Horton, D.R., Guedot, C.N., Landolt, P.J. 2008. Attraction of male summerform pear psylla to volatiles from female psylla: effects of female age, mating status, and presence of host plant. The Canadian Entomologist 140:184-191.

Spatial Patterns of Western Flower Thrips in Apple Orchards and Associated Fruit Damage - (Peer Reviewed Journal)

Miliczky, E., Cockfield, S.D., Beers, E.H., Horton, D.R. 2007. Spatial patterns of western flower thrips in apple orchards and associated fruit damage. Journal of British Columbia Entomological Society 104:25-33.

Timing of Oviposition of Thrips (Thysanoptera: Thripidae) in Apple Fruit - (Peer Reviewed Journal)

Cockfield, S.D., Beers, E.H., Horton, D.R., Miliczky, E. 2007. Timing of oviposition of thrips (thysanoptera: thripidae) in apple fruit. Journal of British Columbia Entomological Society 104:45-53.

Observations on Phenology and Overwintering of Spiders Associated with Apple and Pear Orchards in South Central Washington - (Peer Reviewed Journal)

Miliczky, E., Horton, D.R., Calkins, C.O. 2008. Observations on Phenology and Overwintering of Spiders Associated with Apple and Pear Orchards in South Central Washington. Journal of Arachnology 36:565-573.

Minute pirate bugs (Hemiptera: Anthocoridae) - (Book/Chapter)

Horton, D.R. 2008. Minute pirate bugs (Hemiptera: Anthocoridae). In: J.. Capinera (ed.), Encyclopedia of Entomology, 2nd edition. Vol 3, pp 2402-2412. Springer.

How Do Wireworms Find Their Host Plants? - (Trade Journal)

Horton, D.R. 2007. How Do Wireworms Find Their Host Plants?. Potato Progress 7 (#10): 1-3.

Morphological and Genetic Divergence in Three Populations of Anthocoris Antevolens (Hemiptera: Heteroptera: Anthocoridae) - (Peer Reviewed Journal)

Horton, D.R., Unruh, T.R., Lewis, T.M., Thomsen Archer, K.L. 2007. Morphological and genetic divergence in three populations of anthocoris antevolens (hemiptera: heteroptera: anthocoridae). Annuals of the Entomological Society of America 100(3):403-412.

Natural Enemy Fauna (Insecta, Araneae) Found on Native Sagebrush Steppe Plants in Eastern Washington with Reference to Species Also Found in Adjacent Apple and Pear Orchards - (Peer Reviewed Journal)

Miliczky, E., Horton, D.R. 2007. Natural Enemy Fauna (Insecta, Araneae) Found on Native Sagebrush Steppe Plants in Eastern Washington with Reference to Species Also Found in Adjacent Apple and Pear Orchards. Pan Pacific Entomology 83(1):50-65.

Attraction of Male Pear Psylla, Cacopsylla Pyricola, to Female-Infested Pear Shoots - (Peer Reviewed Journal)

Horton, D.R., Landolt, P.J. 2007. Attraction of male pear psylla, cacopsylla pyricola, to female-infested pear shoots. Entomologia Experimentalis et Applicata. 123:177-183.

Diapause Status of Females Affects Attraction of Male Pear Psylla, Cacopsylla Pyricola, to Volatiles from Female-Infested Pear Shoots - (Peer Reviewed Journal)

Horton, D.R., Guedot, C.N., Landolt, P.J. 2007. Diapause status of females affects attraction of male pear psylla, cacopsylla pyricola, to volatiles from female-infested pear shoots. Entomologia Experimentalis et Applicata. 123:185-192.

Improving Apple IPM by maximizing opportunities for biological control. - (Popular Publication)

Jones, V.P., Unruh, T.R., Horton, D.R., Brunner, J.F. 2006. Improving Apple IPM by maximizing opportunities for biological control. Good Fruit Grower. Dec. 2006, p. 1-8.

Quantitative relationship between potato tuber damage and counts of Pacific Coast wireworm (Coleoptera: Elateridae) in baits: seasonal effects. - (Peer Reviewed Journal)

Horton, D.R. 2006. Quantitative relationship between potato tuber damage and counts of Pacific Coast wireworm (Coleoptera: Elateridae) in baits: seasonal effects. Journal of British Columbia Entomological Society, 103:37-48.

Pear Insects, Ecology and Control - (Book/Chapter)

Horton, D.R., Unruh, T.R. 2007. Pear Insects: Ecology and Control. Encyclopedia of Pest Management, 1:1, 1-4. URL: http://dx.doi.org/10.1081/E-EPM-120041162

How Deep Are Wireworms in the Spring? - (Popular Publication)

Horton, D.R. 2005. How deep are wireworms in the spring?. Potato Progress. V(12):2-4.

Progeny of a Tri-Species Potato Somatic Hybrid Express Resistance to Wireworm in Eastern and Western Potato Production Regions of the U.S. - (Peer Reviewed Journal)

Novy, R.G., Alvarez, J.M., Sterret, S.B., Kuhar, T.P., Horton, D.R. 2006. Progeny of a tri-species potato somatic hybrid express resistance to wireworm in eastern and western potato production regions of the u.s.. American Journal of Potato Research.83(1):126

Size and Shape Differences in Genitalia of Males from Sympatric and Reproductively Isolated Populations of Anthocoris Antevolens White (Heteroptera: Anthocoridae) in the Yakima Valley, Washington - (Peer Reviewed Journal)

Horton, D.R., Lewis, T.M. 2005. Size and shape differences in genitalia of males from sympatric and reproductively isolated populations of anthocoris antevolens white (Heteroptera: Anthocoridae) in the Yakima Valley, Washington. Annals of the Entomological Society of America. 98(4):527-535.

Differences in Mating Behavior among Three Populations of Anthocoris Antevolens White (Heteroptera:anthocoridae): a Comparison of Intra and Interpopulation Crosses - (Peer Reviewed Journal)

Horton, D.R., Bayer, M.A., Lewis, T.M. 2005. Differences in mating behavior among three populations of Anthocoris antevolens white (Heteroptera:Anthocoridae): a comparison of intra- and interpopulation crosses. Annals of the Entomological Society of America. 98(4):608-614.

Densities of Beneficial Arthropods Within Pear and Apple Orchards Affected by Distance from Adjacent Native Habitat and Association of Natural Enemies with Extra-Orchard Host Plants - (Peer Reviewed Journal)

Miliczky, E.R., Horton, D.R. 2005. Densities of beneficial arthropods within pear and apple orchards affected by distance from adjacent native habitat and association of natural enemies with extra-orchard host plants. Biological Control. 33:249-259

Ovarian Development and Lipid Reserves Are Affected by Mating Delays in Three Species of Anthocoris (Heteroptera: Anthocoridae) - (Peer Reviewed Journal)

Horton, D.R., Lewis, T.M., Neven, L.G. 2005. Ovarian development and lipid reserves are affected by mating delays in three species of anthocoris (heteroptera: anthocoridae). The Canadian Entomologist. 137(3):328-336.

Phenology of Emergence from Overwintering Shelters by Some Predatory Arthropods Common in Pear Orchards of the Pacific Northwest - (Peer Reviewed Journal)

Horton, David R. 2004. Phenology of emergence from overwintering shelters by some predatory arthropods common in pear orchards of the Pacific Northwest. J. of the Entomological Society of British Columbia 101:101-108.

New State and United States Records for Anthocoridae (Hemiptera: Heteroptera) - (Peer Reviewed Journal)

Lewis, T.M., Horton, D.R., Broers, D.A. 2005. New state and United States records for Anthocoridae (Hemiptera:Heteroptera). Pan Pacific Entomology. 81:59-67.

Biology of Pacific Coast and Sugarbeet Wireworm in the Columbia Basin - (Trade Journal)

Horton, D.R. 2004. Biology of Pacific coast and sugarbeet wireworm in the Columbia Basin. Potato Progress. IV(10):1-4.

Ecological and Geographic Range Expansion of the Introduced Predator Anthocoris Nemoralis (Heteroptera:anthocoridae) - (Peer Reviewed Journal)

Horton, D.R., Lewis, T.M., Broers, D.A. 2004. Ecological and geographic range expansion of the introduced predator Anthocoris nemoralis (Heteroptera:Anthocoridae). American Entomologist. 50:18-30.

Numbers and Types of Arthropods Overwintering on Common Mullein, Verbascum Thapus L. (Scrophulariaceae), in a Central Washington Fruit-Growing Region - (Peer Reviewed Journal)

Horton, D.R., Lewis, T.M. 2003. Numbers and types of arthropods overwintering on common mullein, Verbascum thapus L (Scrophulariaceae), in a central Washington fruit-growing region. Journal of Entomological Society of British Columbia. 100:79-87.

Anthocoris Tristis Van Duzee, 1921, a Synonym of Anthocoris Whitei Reuter, 1884 (Hemiptera: Herteroptera: Anthocoridae) - (Peer Reviewed Journal)

Lewis, T.M., Horton, D.R., Lattin, J.D. 2004. Anthocoris tristis Van Duzee, 1921, a synonym of Anthocoris whitei, Reuter, 1884 (Hemiptera: Heteroptera: Anthocoridae). Pan-Pacific Entomologist. 79:155.

Microbial Control of the Colorado Potato Beetle in Irrigated Desert: Combinations and Alternations of Bacillus Thuringiensis and Beauveria Bassiana - (Abstract)

Lacey, L.A., Horton, D.R. 2003. Microbial control of the Colorado potato beetle in irrigated desert: combinations and alternations of Bacillus thuringiensis and Beauveria bassiana. Society of Invertebrate Pathology. p.59.

Pear Psylla, Cacopsylla Pyricola (Foerster) (Homoptera:psyllidae) - (Book/Chapter)

Horton, D.R. 2004. Pear psylla, Cacopsylla pyricola (Foerster) (Homoptera:Psyllidae). In: J.L. Capinera (ed.), Encyclopedia of Entomology. Kluwer Academic Publishers.

Frequency of Mowing and Effects on Densities of Natural Enemies in the Ground Cover, in the Tree Canopy, and on the Orchard Floor at Three Pacific Northwest Pear Orchards - (Peer Reviewed Journal)

Horton, D.R., Broers, D., Lewis, R., Granatstein, D., Zack, R., Unruh, T.R., Moldenke, A., Brown, J. 2003. Frequency of mowing and effects on densities of natural enemies in the ground cover, in the tree canopy, and on the orchard floor at three Pacific Northwest pear orchards. Entomologia Experimentalis et Applicata. 106:135-145.