Now showing items 21-28 of 28

    • Whitefly Predator “Thresholds” in Cotton

      Ellsworth, Peter C.; Pier, Naomi; Fournier, Alfred; Naranjo, Steven E.; Vandervoet, Timothy F.; University of Arizona; USDA-ARS; New Zealand Plant and Food Research (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2019-01 r)
      Natural enemy conservation is central to pest avoidance in cotton. The benefit of predators for controlling whiteflies should not be overlooked. Today’s growers can use selective technologies that conserve predators, which play a critical (& free) role in controlling whiteflies. We don’t normally think of predators as having “thresholds”, but new research identifies critical levels of predators that impact economic spray decisions for whiteflies.
    • In 7 Minutes or Less!

      Ellsworth, Peter C; Brown, Lydia; Castro, Gilberto; Naranjo, Steven E.
      In 7 minutes or less and just 7 steps, you can determine the size and structure of Bemisia tabaci populations in a cotton field. With this information, more precise and appropriate control decisions can be made.
    • Cotton Insecticide Use Guide: Knowing and Balancing Risks

      Bordini, Isadora; Fournier, A.; NARANJO, STEVEN E.; Pier, Naomi; Ellsworth, Peter C; University of Arizona; USDA-ARS (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2020-07-11)
      Many factors must be considered when choosing an insecticide, such as cost, efficacy, risk of resistance, and safety to non-target organisms. This Cotton Insecticide Use Guide summarizes the diverse risks of insecticides used to control three pests, helping you make well informed pest management decisions
    • Integrating Chemical & Biological Control in Cotton

      Ellsworth, Peter C; Bordini, Isadora; Pier, Naomi; Naranjo, Steven E.; University of Arizona, Department of Entomology & Cooperative Extension (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2022-07-15)
      Biological control works when chemical controls are carefully selected so that key predator groups are conserved. Big-eyed bugs, Collops beetles, crab spiders, lacewing larvae, minute pirate bugs and Drapetis flies are the key predators in the cotton system. They can effectively hold whiteflies in check when their numbers are high enough. Includes updated whitefly predator threshold tables.
    • Utilizando los Predadores en Algodón - FMC22

      Ellsworth, Peter C; Pier, Naomi; Fournier, Alfred; Naranjo, Steven; University of Arizona; USDA-ARS, ALARC (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2022-06)
      La guía del inspector acompañante para “Making Whitefly & Predator Counts”. Esta guía portátil proporciona instrucciones para el muestreo de mosca blanca y predators. La tablas proporcionan una guía para tomar decisiones sobre cuando fumigar para manejar eficazmente mosca blanca. Disponible tanto en inglés como en español.
    • Pale-Striped Flea Beetles in Young Cotton Stands

      Ellsworth, Peter C.; Brown, Lydia; University of Arizona Department of Entomology & Cooperative Extension (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2012-04)
      A guide to protecting young and emerging cotton from flea beetle damage and the factors to consider in determining control options.
    • ThryvOn™ Cotton, Frequently Asked Questions

      Ellsworth, Peter C.; Bordini, Isadora; Pier, Naomi; Entomology / Maricopa Agricultural Center (The University of Arizona (Tucson, AZ), 2021-06-09)
      ThryvOn™ cotton is genetically engineered to resist injury by Frankliniella thrips and Lygus bugs. ThryvOn cotton is a major addition to the cotton IPM strategy. It will provide a new mode of action for diminishing the impacts of thrips and Lygus in cotton. This IPM Short should answer frequently asked questions of stakeholders and help growers and pest control advisors establish and discuss their expectations.
    • Cross-commodity Guidelines for Neonicotinoid Insecticides in Arizona

      Palumbo, John C.; Ellsworth, Peter C.; Dennehy, Timothy J.; Entomology (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2003-05)
      Arizona enjoys a sustained recovery from the devastating whitefly outbreaks of the early 1990's. This success is built on an IPM strategy that includes the use of selective and effective chemistry. Admire has been a key soil insecticide protecting vegetables and produce throughout Arizona and is the first member of a burgeoning class of chemistry known as the neonicotinoids. New members of this valuable, reduced-risk, class of chemistry are now available to agricultural producers, placing a burden on users of these compounds to adopt rational plans for sustaining their efficacy. This consensus document represents our best guess efforts to limit and share this chemistry among different agricultural interests. Our goal is to preserve the long-term efficacy of the neonicotinoids and protect growers' interests in sustainable and economical whitefly management. Through identification of crop communities (i.e., "multi-crop", "cotton-intensive", and "cotton/melon") common to Arizona agriculture, we have sculpted sensible plans of use that should allow access to this valuable chemistry for everyone, while protecting it from resistance.