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Investigating the effects of planting date and Aphis gossypii management on reducing the final incidence of cotton leafroll dwarf virus

Mahas, J. W., Hamilton, F. B., Roberts, P. M., Ray, C. H., Miller, G. L., Sharman, M., Conner, K., Bag, S., Blythe, E. K., Toews, M. D. and Jacobson, A. L. (2022) Investigating the effects of planting date and Aphis gossypii management on reducing the final incidence of cotton leafroll dwarf virus. Crop Protection, 158 . p. 106005. ISSN 0261-2194

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Article Link(s): https://doi.org/10.1016/j.cropro.2022.106005

Publisher URL: https://www.sciencedirect.com/science/article/pii/S0261219422001016

Abstract

This is the first study to research management strategies for cotton leafroll dwarf virus (CLRDV) in the southeastern U.S. The efficacy of aphid vector management to reduce final CLRDV incidence was investigated concurrent with efforts to monitor aphid population dynamics and timing of CLRDV spread. Adjusting the planting date and insecticide applications did not reduce the final incidence of CLRDV, which was confirmed in 60–100% of plants per plot using RT-PCR. Aphid population density was reduced, but not eliminated with foliar insecticide applications. Aphis gossypii was the only species observed on cotton and was the dominant species collected in pan traps. Three distinct periods of virus spread were detected with sentinel plants including early, mid-and late-season. Most virus spread occurred during large aphid dispersal events.

Item Type:Article
Business groups:Crop and Food Science
Keywords:Solemoviridae Polerovirus Aphididae
Subjects:Agriculture > Agriculture (General) > Methods and systems of culture. Cropping systems
Plant culture > Field crops > Textile and fibre plants
Plant pests and diseases
Plant pests and diseases > Plant pathology
Deposited On:19 May 2022 04:12
Last Modified:19 May 2022 04:15

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