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  1. Pest Identification
  2. Insects
  3. Publications And Resources
Insect Publications and Other Resources
Insect Publications
  • Jan 2025
    Keys to Effective Aphid Management in Leafy Vegetables (2025)
    Publication (PDF, 180kb)
    Authors: John C. Palumbo
    For vegetable growers to successfully compete in the fresh market, they must be able to produce high quality, insect-free crops. This is particularly challenging for growers of leafy vegetables where damage by aphids can seriously reduce yield and quality. In many areas that produce lettuce, aphids are considered the most economically important insect pest found on the crop
  • May 2024
    Weed Interference with Insect Management in Desert Crops (2024)
    Publication (PDF, 757KB)
    Authors: John C. Palumbo
    Effective weed management is critical for the profitable production of vegetable crops in the desert southwest for all the obvious reasons. However, weed management is also essential for another important, but often overlooked, reason. Several common weed species found in and around vegetable crops can serve as host plants to many insect pests that can later infest nearby crops. Additionally, when weeds are not controlled in the field, they can be an impediment to effective insect control.
  • Jun 2020
    Ten Years of Bagrada Bug on Desert Cole Crops
    Publication (PDF, 618Kb)
    Authors: John C. Palumbo
    The bagrada bug, Bagrada hilaris, became a major pest of cole crops in the fall of 2010 where widespread out breaks of the invasive stinkbug pest were reported throughout the desert SW. The resulting yield losses in broccoli, cauliflower, cabbage, and other Brassica crops were economically significant.
  • Nov 2019
    Weather Influences Desert Insect Pests
    Publication (PDF, 179KB)
    Authors: John C. Palumbo
    Local weather patterns can have a significant impact on the abundance of insect pests in vegetable crops, particularly in the southwestern U.S. where weather extremes are the norm. Components of weather, mainly temperature, moisture, and wind can either promote insect population growth or cause populations to decline. As we approach the normal cool, dry weather of winter, growers can expect insect activity to decrease. Why is that?
  • Sep 2019
    2019 Guidelines for Diamondback Moth Management in Desert Cole Crops
    Publication (PDF, 572KB)
    Authors: John C. Palumbo
    List of Guidelines prepared in response to the diamondback moth (DBM) outbreaks that occurred in 2016-17 in Arizona. Following these guidelines can help keep the moths from spreading. There is also a list of insecticides and their respective efficacy against DBM.
  • Sep 2019
    Bagrada Bug Management Tips - 2019
    Publication (PDF, 467KB)
    Authors: John C. Palumbo
    Contains information on how to manage the Bagrada bug. Includes: where they tend to hide, how to scout them out, what their feeding signs look like, and tips regarding chemical control.
  • Sep 2019
    Diamondback Moth on Desert Cole Crops: Survey Results from 2016-2018
    Publication (PDF, 597KB)
    Authors: John C. Palumbo
    In 2016 there was a outbreak of Diamondback Moths. This article covers a bit of the history of that outbreak and how the were handled in the next two years. The event was partially documented by some surveys found in this article.
  • Aug 2019
    Insect Management on Desert Produce and Melons: Pests at Stand Establishment 2019
    Publication (PDF, 784KB)
    Authors: John C. Palumbo
    There are many insects that can be found on Desert Produce and Melons. This Article covers the description, damage, and Management/Control of the following insects: Flea Beetles, Darkling Beetles, Field crickets, Saltmarsh Caterpillar, Ground Beetles, and Rove Beetles.
  • Jul 2019
    2019 Guidelines for Whitefly / CYSDV Management on Fall Melons
    Publication (PDF, 764KB)
    Authors: John C. Palumbo
    CYSDV has caused significant reductions in fruit yields in the past, mainly due to the whitefly. This article gives some management guidelines for the whitefly including cultural management and chemical management.
  • Jul 2019
    Cultural Practices for Whitefly Management in Desert Melons 2019
    Publication (PDF, 71KB)
    Authors: John C. Palumbo
    This article outlines some ways to manage the Whitefly (SWF) population. Even though there are naturally occurring factors that lie outside the realm of control, there is still many things one can do to help reduce the population and risk of the Whitefly.
  • Jun 2019
    Insecticide Usage on Desert Lettuce, 2018-2019
    Publication (PDF, 512KB)
    Authors: John C. Palumbo
    A total of 28 surveys were completed of insecticide usage on desert lettuce, representing an estimated total of 33,275 fall acres and 35,156 spring lettuce acres from Yuma and neighboring Imperial Counties (Holtville/Brawley/BardWinterhaven).
  • Jun 2019
    Insect Losses and Management on Desert Lettuce: A 15-Year Summary
    Publication (PDF, 799.9KB)
    Authors: John C. Palumbo
    This article details the results of a survey aimed at assessing what kind of yield losses are suffered on lettuce due to insect pests. It contains data spanning over fifteen years (2005-2019).
  • Jun 2019
    Biology and Management of Thrips
    Publication (PDF, 2.9MB)
    Authors: Shimat V. Joseph, Kris Braman, Will Hudson, and Shakunthala Nair
    Thrips are tiny, cigar-shaped insects belonging to the order Thysanoptera, whose name refers to the fringed wings of insects in this order. About 5000 species of thrips are known, and many cause damage to cultivated plants by feeding or vectoring plant diseases. Some thrips are predatory. This document relays information about thrips.
  • May 2019
    Nine Years of Bagrada Bug on Desert Cole Crops
    Publication (PDF, 531KB)
    Authors: John C. Palumbo
    The bagrada bug, became a major pest of cole crops in the fall of 2010. The following contains the summaries surveys performed on an annual basis since 2010, aiming to estimate the severity of bagrada bug on direct-seeded and transplanted cole crops, and the intensity of chemical management required to control it.
  • May 2019
    Weed Interference with Insect Management in Desert Crops
    Publication (PDF, 844KB)
    Authors: John C. Palumbo
    Effective weed management is critical for the profitable production of vegetable crops in the desert southwest for all the obvious reasons. However, weed management is also essential for another important, but often overlooked, reason.
  • May 2019
    Spider Mites in Melons 2019
    Publication (PDF, 146KB)
    Authors: John C. Palumbo
    Twospotted spider mites, are widespread on melon crops throughout the southwestern U.S. This report describes their appearance, the type of damage they usually cause, and methods of management.
  • May 2019
    Blister Beetles in Food?
    Publication (PDF, 7 MB)
    Authors: W. Eugene Hall, Lydia M. Brown, Naomi Pier, and Peter C. Ellsworth
    Blister beetles produce a toxic compound called cantharidin, which can be lethal to horses and unpleasant to humans and other animals. This publication provides guidelines to help growers avoid blister beetle contamination.
  • May 2019
    Blister Beetle Basics
    Publication (PDF, 4.71MB)
    Authors: W. Eugene Hall, Naomi Pier, and Peter C. Ellsworth
    A guide to recognizing Arizona’s diverse blister beetles and how to distinguish them from other similar beetle species.
  • Apr 2019
    Insect Management on Desert Melons: Whiteflies 2019
    Publication (PDF, 830KB)
    Authors: John C. Palumbo
    This article describes the sweetpotato whitefly (SWF) in great depth and their relation to Desert Melons. It includes it's history of development and damages it has caused. The article also describes the management of SWF, including sampling/monitoring, natural/biological control, cultural practices, and insecticidal control.
  • Apr 2019
    Whitefly Management in Spring Melons - 2019
    Publication (PDF, 185KB)
    Authors: John C. Palumbo
    A chart detailing various insecticides and the efficacy against Whiteflies. Each insecticide is rated at Good, Fair, and Poor, and is shown for both the Adult and Nymph stage. There is also a brief note for each of the insecticides.

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Insect Presentations
  • Jul 2021
    Tips on How to Manage Lygus Efficiently in ThryvOn Cotton
    Presentation (PDF, 6.9MB)
    Authors: Peter C. Ellsworth, Isadora Bordini, Naomi Pier
    Location Presented: Rayner Farm
  • Aug 2020
    Making the Right Decisions with Predator Thresholds for Whitefly Management in Cotton
    Presentation (PDF 1.1MB)
    Authors: Peter C. Ellsworth, Naomi Pier, Isadora Bordini, Steven E. Naranjo
    Location Presented: Virtual Tent Talk
  • Jul 2020
    Latest Arizona Research on ThryvOn Cotton Trait Technology
    Presentation (PDF, 5.4MB)
    Authors: Peter C. Ellsworth, Steve Naranjo, Isadora Bordini, Naomi Pier
    Location Presented: Desert Ag Virtual Conference
  • Jun 2020
    Push-Pull-Control: Securing Guayule's Future
    Presentation (PDF, 4.6MB)
    Authors: Peter C. Ellsworth, Naomi Pier, & Isadora Bordini
    Location Presented: 7th Annual New Technologies Workshop for Field Crops
  • Jan 2020
    Biocontrol Informed Thresholds, Insecticide Selectivity, and Risk Reduction in Whitefly Management
    Presentation (PDF, 14.9MB)
    Authors: Isadora Bordini, Naomi Pier, Peter C. Ellsworth
    Location Presented: 2020 January Field Crops Clinics
  • Oct 2019
    Alfalfa Production: Getting a Good Start
    Presentation (PDF, 4.8MB)
    Authors: Mike Ottman
    Location Presented: Parker and Blythe
  • Aug 2019
    Blister Beetles – A Challenge for Arizona’s Growers
    Presentation (PDF, 781KB)
    Authors: W. Eugene Hall, Peter C. Ellsworth, Leif Abrell, Naomi Pier, Duarte Diaz
    Location Presented: University of Arizona Cooperative Extension Conference, Tucson, AZ August 2019
  • May 2018
    New Research & Trends in Cotton Insect Control
    Presentation (PDF, 8.00Mb)
    Authors: Ellsworth P.C.
    Location Presented: Poster presented at the Desert Agriculture Conference, Scottsdale, AZ.
  • Mar 2018
    Adoption of proactive resistance management practices to control Bemisia tabaci in Arizona and California
    Presentation (PDF, 388KB)
    Authors: Pier, N., A. Fournier, J. Palumbo, Y. Carrière, W. Dixon, L. Brown, S. J. Castle, N. Prabhaker, P.C. Ellsworth
    Location Presented: Poster presented at the 9th International IPM Symposium. Baltimore, Maryland
  • Feb 2018
    Protection of the Pesticide Applicator
    Presentation (PDF, 311 KB)
    Authors: Wierda, M.
    Location Presented: Presented at Willcox Community Center, AZ.
  • Feb 2018
    Protection of the Pesticide Applicator w/ a Contamination Demonstration
    Presentation (PDF, 311KB)
    Authors: Wierda, M.
    Location Presented: Presented at Willcox Community Center, AZ.
  • Jun 2017
    Implementing IPM in Cotton in Arizona & Mexico
    Presentation (PDF, 1.904MB)
    Authors: Ellsworth, P. and Naranjo, S.
    Location Presented: Presented at the 14th International Symposium on the Biosafety of GMOs, Guadalajara, Mexico
  • Apr 2017
    Section 18 Emergency Exemptions & Transform Use in Cotton
    Presentation (PDF, 2.972MB)
    Authors: Ellsworth, P.
    Location Presented: Presented at the Desert Agriculture Conference, Chandler, AZ.
  • Nov 2016
    Fulfilling Our Mission
    Presentation (PDF, 4.84MB)
    Authors: Peter C. Ellsworth
    Location Presented: Campus Administrative Team In-Service, Maricopa Ag Center
  • Sep 2016
    Chronicling Successful Integration of Technology and Knowledge over 25 Years of IPM in Arizona
    Presentation (PDF, 942KB)
    Authors: Ellsworth, P., A. Fournier, J. Palumbo, S. Naranjo, G. Frisvold.
    Location Presented: Presented at the International Congress of Entomology, Orlando, FL.
  • Jun 2016
    Measuring Biological Control for Whitefly Management in Cotton
    Presentation (PDF, 695KB)
    Authors: Vandervoet T., P. Ellsworth, S. Naranjo, Y. Carrière.
    Location Presented: Presented at New Technology Workshop, Maricopa, AZ.
  • Feb 2016
    The Arizona Whitefly IPM Model: Cooperative Extension as Key to Translating and Transforming the Mexican Cotton System
    Presentation (PDF, 1809KB)
    Authors: Ellsworth, P., A. Fournier, T. Vandervoet, S. Naranjo.
    Location Presented: Presented at the 2nd International Whitefly Symposium, Arusha, Tanzania.
  • May 2015
    Toretto Fit in Cotton IPM Programs
    Presentation (PDF, 2.18MB)
    Authors: Peter C. Ellsworth
    Location Presented: Mexicali, Mexico
  • Apr 2015
    Status of Insect Pests on Lettuce in Arizona: Economic Impacts and Management
    Presentation (PDF, 777KB)
    Authors: John C. Palumbo
  • Nov 2014
    IPM trends and data: Two decades of pesticide use and risk
    Presentation (PDF, 5.8MB)
    Authors: Michael Guzy, Peter Ellsworth, Al Fournier, Wayne Dixon, Paul Jepson, John Palumbo, Wade Pronchinske
    Location Presented: Entomology 2014: ESA 62nd Annual Meeting, Portland Oregon

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ARIZONA PEST MANAGEMENT CENTER
University of Arizona
College of Agriculture and Life Sciences
Maricopa Agricultural Center

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Maricopa, AZ 85239
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