Impact of Diamondback Moth on Desert Cole Crops, 2016-2021

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Author
Palumbo, John C.
Affiliation
University of Arizona
Issue Date
2021-07-28
Keywords
Diamondback moth
insecticide resistance
Arizona vegetables
DBM management

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Citation
Palumbo, J.C. 2021. Impact and Management of Diamondback Moth on Desert Cole Crops: A Five-Year Perspective. IPM Short. University of Arizona Cooperative Extension, Arizona Pest Management Center.
Publisher
College of Agriculture, Life & Environmental Sciences, University of Arizona (Tucson, AZ)
URI
http://hdl.handle.net/10150/677909
Additional Links
https://acis.cals.arizona.edu/
Abstract
This report documents the resurgence and management of diamondback moth (DBM), Plutella xylostella, in Arizona and California Cole crop production from 2017–2021 following a widespread outbreak of an insecticide-resistant population in fall 2016. Survey data collected from pest control advisors (PCAs) and growers over four seasons revealed minimal DBM impact on yields and control costs compared to the 2016 outbreak. Monitoring data, PCA reports, and insecticide efficacy trials indicate that subsequent DBM populations were susceptible to standard insecticides, including diamides. Results highlight the value of transplants, weather patterns, and proactive resistance monitoring in avoiding DBM outbreaks in desert production systems.
Language
en
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Copyright © Arizona Board of Regents for the Arizona Pest Management Center. Licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Except where otherwise noted, this item's license is described as Copyright © Arizona Board of Regents for the Arizona Pest Management Center. Licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).