Research Project: Mitigating Alternate Bearing of Pecan - Bridge Project

Location: Fruit and Tree Nut Research

Publications (Clicking on the reprint icon will take you to the publication reprint.)

Mating type idiomorphs and genetic diversity of venturia carpophila, cause of peach scab - (Peer Reviewed Journal)
Bock, C.H., Young, C.A., Zhang, M., Chen, C., Brannen, P.M., Adaskaveg, J.A., Charlton, N.D. 2021. Mating type idiomorphs and genetic diversity of venturia carpophila, cause of peach scab. Phytopathology. 111(2):408-424. https://doi.org/10.1094/PHYTO-12-19-0485-R.

First description of the sexual stage of Venturia effusa, causal agent of pecan scab - (Peer Reviewed Journal)
Charlton, N.D., Yi, M., Bock, C.H., Zhang, M., Young, C.A. 2021. First description of the sexual stage of Venturia effusa, causal agent of pecan scab. Mycologia. 112:711-721. https://doi.org/10.1080/00275514.2020.1759998.

From visual estimates to fully automated sensor-based measurements of plant disease severity: status and challenges for improving accuracy - (Review Article)
Bock, C.H., Barbedo, J.G., Del Ponte, E.M., Chiang, K., Bohnemkamp, D., Mahlein, A. 2020. From visual estimates to fully automated sensor-based measurements of plant disease severity: status and challenges for improving accuracy. Phytopathology Research. 2:9. https://doi.org/10.1186/s42483-020-00049-8.

Reproducibility of the development and validation process of standard area diagram By two laboratories: An example using the Botrytis Cinerea/Gerbera Jamesonii Pathosystem - (Peer Reviewed Journal)
Pereira De Melo, V., Da Silva Mendonca, A.C., De Souza, H.S., Gabriel, L.C., Bock, C.H., Eaton, M.J., Schwan-Estrada, K.R., De Carvalho Nunes, W.M. 2020. Reproducibility of the development and validation process of standard area diagram By two laboratories: An example using the Botrytis Cinerea/Gerbera Jamesonii Pathosystem. Plant Disease. 104:2440-2448. https://doi.org/10.1094/PDIS-08-19-1708-RE.

The effect of tractor speed and canopy position on fungicide spray deposition and peach scab incidence and severity - (Peer Reviewed Journal)
Bock, C.H., Rains, G.C., Hotchkiss, M.W., Chen, C., Brannen, P.M. 2020. The effect of tractor speed and canopy position on fungicide spray deposition and peach scab incidence and severity. Plant Disease. 104(7): 2014-2022. https://doi.org/10.1094/PDIS-11-18-1950-RE.

A comparison of ground-based air-blast sprayer and aircraft application of fungicides to manage scab in tall pecan trees - (Peer Reviewed Journal)
Bock, C.H., Hotchkiss, M.W. 2020. A comparison of ground-based air-blast sprayer and aircraft application of fungicides to manage scab in tall pecan trees. Plant Disease. 104:1675-1684. https://doi.org/10.1094/PDIS-11-19-2345-RE.

Quantitative ordinal scale estimates of plant disease severity: Comparing treatments using a proportional odds model - (Peer Reviewed Journal)
Chiang, K., Liu, H.I., Chen, Y.L., El Jarroudi, M., Bock, C.H. 2020. Quantitative ordinal scale estimates of plant disease severity: Comparing treatments using a proportional odds model. Phytopathology. 110:734-743. https://doi.org/10.1094/PHYTO-10-18-0372-R.

Chromosome-level reference genome of Venturia effusa, causative agent of pecan scab - (Peer Reviewed Journal)
Winter, D.J., Charlton, N.D., Krom, N., Shiller, J., Bock, C.H., Cox, M.P., Young, C.A. 2020. Chromosome-level reference genome of Venturia effusa, causative agent of pecan scab. Molecular Plant-Microbe Interactions. 33:149-152. https://doi.org/10.1094/MPMI-08-19-0236-A.

Effects of quantitative ordinal scale design on the accuracy of estimates of mean disease severity - (Peer Reviewed Journal)
Liu, H.I., Tsai, J.R., Chung, W.H., Bock, C.H., Chiang, K. 2019. Effects of quantitative ordinal scale Design on the accuracy of estimates of mean disease severity. Agronomy Journal. 9:595. https://doi.org/10.3390/agronomy9090565.

First report of downy mildew caused by a Plasmopara halstedii on Ageratum houstonianum in the United States - (Peer Reviewed Journal)
Pisani, C., Patel, P.C., Rosskopf, E.N., Abbasi, Mehrdad, Aime, M.C. 2019. First report of downy mildew caused by a Plasmopara halstedii on Ageratum houstonianum in the United States. Plant Disease. https://doi.org/10.1094/PDIS-06-19-1331-PDN.

Phosphite residue in nutmeats of pecan - (Trade Journal)
Bock, C.H., Hotchkiss, M.W., Brenneman, T.B. 2019. Phosphite residue in nutmeats of pecan. Pecan Grower. 31:21-30.

The effect of phosphonate rate on control of scab on pecan - (Peer Reviewed Journal)
Bock, C.H., Brenneman, T.B., Herrington, K., Hotchkiss, M.W. 2019. The effect of phosphonate rate on control of scab on pecan. Crop Protection. 124:104823. https://doi.org/10.1016/j.cropro.2019.05.017.

Disease incidence–severity relationships on leaflets, leaves, and fruit in the pecan–Venturia effusa pathosystem - (Peer Reviewed Journal)
Bock, C.H., Chiang, K. 2019. Disease incidence–severity relationships on leaflets, leaves, and fruit in the pecan–Venturia effusa pathosystem. Plant Disease. 103: 2865-2876. https://doi.org/10.1094/PDIS-11-18-1950-RE.

Higher rates of phosphonate improve efficacy against scab on pecan - (Abstract Only)
Bock, C.H., Brenneman, T.B., Herrington, K., Hotchkiss, M.W. 2019. Higher rates of phosphonate improve efficacy against scab on pecan. Phytopathology. 109:S2.57. https://doi.org/10.1094/PHYTO-109-10-S2.192.

Number of applications and application date affect phosphonate residue in nutmeats of pecan - (Abstract Only)
Bock, C.H., Hotchkiss, M.W., Brenneman, T.B. 2019. Number of applications and application date affect phosphonate residue in nutmeats of pecan. Phytopathology. 109:S2.4. https://doi.org/10.1094/PHYTO-109-10-S2.192.

Requirements for in vitro pseudothecia development and ascospore maturation of Venturia effusa - (Abstract Only)
Charlton, N.D., Bock, C.H., Boykin, D.L., Young, C. 2019. Requirements for in vitro pseudothecia development and ascospore maturation of Venturia effusa. Phytopathology. 109:S2.29. https://doi.org/10.1094/PHYTO-109-10-S2.192.

Tractor speed and concentration of active ingredient affects the incidence and severity of scab on peach fruit - (Abstract Only)
Bock, C.H., Rains, G.C., Brannen, P.M., Hotchkiss, M.W., Chen, C. 2019. Tractor speed and concentration of active ingredient affects the incidence and severity of scab on peach fruit. Phytopathology. 109:S2.57. https://doi.org/10.1094/PHYTO-109-10-S2.192.

The effect of number of fungicide applications and application date on phosphonate residue in nutmeats of pecan - (Peer Reviewed Journal)
Bock, C.H., Hotchkiss, M.W., Brenneman, T.B. 2019. The effect of number of fungicide applications and application date on phosphonate residue in nutmeats of pecan. Crop Protection. 122:70-78. https://doi.org/10.1016/j.cropro.2019.04.020.

Success rate of DNA extraction and PCR amplification from dry pinned sand bees (Andrena Fabricius, 1775) using newly - designed primers - (Peer Reviewed Journal)
Hazir, C., Bock, C.H. 2019. Success rate of DNA extraction and PCR amplification from dry pinned sand bees (Andrena Fabricius, 1775) using newly - designed primers. Turkish Journal of Entomology. 43:79-96. https://doi.org/10.16970/entoted.460948.

Update on phosphite residues in pecan - (Other)
Bock, C.H., Brenneman, T.B. 2019. Update on phosphite residues in pecan. Meeting Abstract. 1-25.

Efficacy of agricultural oil and fungicide combinations as a late dormant treatment for control of peach scab in Georgia, 2015 - (Trade Journal)
Brannen, P.M., Bock, C.H., Hotchkiss, M.W. 2016. Efficacy of agricultural oil and fungicide combinations as a late dormant treatment for control of peach scab in Georgia, 2015. Plant Disease Management Reports. 10:STF014.

Efficacy of agricultural oil and fungicide combinations as a late dormant treatment for control of peach scab in Alabama, 2015 - (Trade Journal)
Sikora, E.J., Pitts, J., Brannen, P.M., Bock, C.H., Hotchkiss, M.W. 2016. Efficacy of agricultural oil and fungicide combinations as a late dormant treatment for control of peach scab in Alabama, 2015. Plant Disease Management Reports. 10:STF011.

Methods to assess pecan scab - (Peer Reviewed Journal)
Bock, C.H., Gottwald, T.R., Wood, B.W. 2015. Methods to assess pecan scab. Acta Horticulturae. 1070:211-222.