Tips on How to Manage Lygus Efficiently in ThryvOn Cotton

Abstract

ThryvOn cotton has been introduced to Arizona largely through seed contracts and other limited programs in 2021. The Arizona cotton IPM strategy depends on the introduction and stewardship of selective technologies like Bt cottons for lepidopteran control and selective insecticides for whitefly or Lygus control. The system also depends on their safety to natural enemies like predators that provide biological control of whiteflies and other pests. Recently, we introduced Predator Thresholds that guide insecticide application timing for whitefly control by determining the level of biological control provided by 6 groups of cotton predators.