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29 December 2018 Effects of Planting Date on Thrips (Thysanoptera: Thripidae) in Cotton
Cody D. Kerns, Jeremy K. Greene, Francis P. F. Reay-Jones, William C. Bridges
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At-plant applications of insecticides are the most common method to manage thrips in upland cotton, Gossypium hirstutum L. Because the primary pest species, tobacco thrips, Frankliniella fusca (Hinds), has developed resistance to commonly used neonicotinoid insecticides used in producing cotton, alternative control options are needed for sustainable thrips management programs. A 3-year study (2015–2017) showed that densities of thrips, feeding injury from thrips, cotton growth, and yield varied among 10 planting dates. Densities of thrips were lowest in seedling cotton planted after mid-May in all years. Thrips injury ratings in all years were highest in cotton planted in April, lowest in cotton planted in June, and below intermediate injury (intermediate corresponded to a 3 on the 0–5 scale) levels in cotton planted after mid-May. Cotton planted during May, rather than in April or June, had the highest yield potential, regardless of variety. Results of the study indicated that altering planting date could potentially be useful in mitigating injury and losses from thrips in upland cotton.

© The Author(s) 2018. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail:
Cody D. Kerns, Jeremy K. Greene, Francis P. F. Reay-Jones, and William C. Bridges "Effects of Planting Date on Thrips (Thysanoptera: Thripidae) in Cotton," Journal of Economic Entomology 112(2), 699-707, (29 December 2018).
Received: 3 August 2018; Accepted: 3 December 2018; Published: 29 December 2018

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Frankliniella fusca
planting date
tobacco thrips
upland cotton
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