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During the past 20 years, there has been an unprecedented development of insecticide
chemistry that has had a major impact on how PCAs manage insects on leafy vegetables
and melons. Among these were several breakthrough chemistries including the neonicotinoids,
spinosyns, ketoenols and diamides. Without question these products (along with other
recently registered compounds) are more effective and safer to use than compounds
used prior to 1993. In 2014, several new insecticide products became available for
management of the key pest found on desert crops. Sequoia (Sulfoxaflor, formerly
known as Closer) is currently registered for use in leafy vegetables and melons
in Arizona and should have an excellent fit for aphid and Lygus management in spring
vegetables. Although it has a similar target site as the neonicotinoid chemistry,
it is not considered a neonicotinoid by IRAC because of differences in how insects
metabolize the toxin. Rather, it is classified as a sulfoximine and the first of
the chemical class to be registered. Exirel/Verimark (Cyazypyr) was recently registered
in Arizona this past fall. Cyazypyr
Remember, When in Doubt . . . . . “SCOUT”
Click picture to listen to John’s update To contact John Palumbo go to: jpalumbo@ag.arizona.edu |
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For questions or comments on any of the topics please contact Marco Pena at the Yuma Agricultural Center.
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