Publications

IPM Assessment Publications

Mar 2025

U.S. Pesticide Policy is Influenced by Stakeholder Comments Managed by the Western IPM Center

Publication (PDF, 2.2MB)

Authors: Alfred J Fournier, Alexa M Brown, Matt, Baur, Danielle Lightle, Katie Murray, Natalie Hein-Ferris, Marion Murray, Steve Elliot, Wayne Dixon, Petter C. Ellsworth

Comments submitted in response to pesticide registration review issues influence federal pesticide policy. An analysis of 95 comments from the Western U.S. submitted in coordination with the Western IPM Center, including 48 comments from University of Arizona, showed that 92% of comments provided substantive data that informed EPA registration review. In 22% of cases, comments had a direct influence on the outcomes, supporting productive and efficient agriculture while protecting human health and the environment.
Jul 2024

Insecticide Usage on Conventional and Organic Lettuce in the Desert, 2005-2024

Publication

Authors: John C. Palumbo

The development of accurate data on insecticide usage is important to the assessment of IPM programs in Arizona. A reliable estimate of insecticide use patterns is one of our most objective tools for assessing changes in management practices. This information allows us to build relevant databases for measuring user behaviors and adoption of new IPM technologies. For PCAs, it can translate their efforts into economic terms for their clientele and confirms their value to the lettuce industry by showing the importance of their cost-effective management in desert lettuce production. This summary provides estimates of insecticide use during the 2023-24 growing season and trends on lettuce IPM over the past 20 years.
Oct 2023

Identifying the Foundation of the IPM Network – Laying the Groundwork for Growth

Publication (PDF, 2MB)

Authors: Mueller, D., L. Iles, C. Pilcher, R. Magarey

Presentation of the Regional IPM Centers to the National IPM Coordinating Committee
Oct 2023

Arizona IPM Outcomes 2023. Report to the WERA 1017 Regional Coordinating Committee

Publication (1.28MB)

Authors: Al Fournier, Dawn Gouge, Shujuan Li, Peter Ellsworth

Recent impacts of APMC IPM Programs. Topics include savings to growers from thrips and Lygus resistant ThryvOn Cotton, a project to reduce use of the riskiest pesticides throughout US cotton, collaborations with tribal growers and communities to protect public health, and more.
Jul 2023

Trends in Insect Losses and Management on Desert Lettuce: A 19-Year Summary

Publication

Authors: John C. Palumbo

The development of accurate data on lettuce yield losses is important to the assessment of IPM programs in Arizona. Reliable estimates of yield losses caused by key insect pests occurring in lettuce is our most objective tools for assessing change in management practices. This information allows us to build relevant databases for measuring the pest status of important insect species found on desert lettuce, as well as the economic impacts they are responsible for. This information also serves as a resource to assist applied scientists in prioritizing research projects in developing IPM programs for desert lettuce. For PCAs, this data can demonstrate their efforts into economic terms for their growers, and justifies their value to the lettuce industry by showing the importance of insect pests in desert lettuce production. This summary over the past nineteen growing seasons (2004-2023) provides real world data on the pest status of key insect species, economics of insect management, and estimates of yield losses in lettuce.
Jun 2023

Insecticide Usage on Conventional and Organic Lettuce in the Desert, 2022-2023

Publication

Authors: John C. Palumbo

The development of accurate data on insecticide usage is important to the assessment of IPM programs in Arizona. A reliable estimate of insecticide use patterns is one of our most objective tools for assessing changes in management practices. This information allows us to build relevant databases for measuring user behaviors and adoption of new IPM technologies. For PCAs, it can translate their efforts into economic terms for their clientele and confirms their value to the lettuce industry by showing the importance of their cost-effective management in desert lettuce production. This summary provides estimates of insecticide use during the 2022-23 growing season and trends on lettuce IPM over the past 19 years.
Jul 2022

Insect Losses and Management on Desert Lettuce: An 18 Year Summary

Publication

Authors: John C. Palumbo
Jun 2022

Insecticide Usage on Conventional and Organic Lettuce in the Desert, 2021-2022

Publication

Authors: John C. Palumbo

The development of accurate data on insecticide usage is important to the assessment of IPM programs in Arizona. A reliable estimate of insecticide use patterns is one of our most objective tools for assessing changes in management practices. This information allows us to build relevant databases for measuring user behaviors and adoption of new IPM technologies. For PCAs, it can translate their efforts into economic terms for their clientele and confirms their value to the lettuce industry by showing the importance of their cost-effective management in desert lettuce production. This summary provides estimates of insecticide use during the 2020-21 growing season and trends on lettuce IPM over the past 17 years.
Jun 2022

NCC Response To Sulfoxaflor

Publication (PDF, 1MB)

Authors: Peter C. Ellsworth and Alfred J. Fournier

Arizona Pest Management Center response to National Cotton Council query on the use of Sulfoxaflor in Arizona cotton.
Aug 2020

Insecticide Usage on Desert Lettuce, 2019-2020

Publication

Authors: John C. Palumbo

The development of accurate data on insecticide usage is important to the assessment of IPM programs in Arizona. A reliable estimate of insecticide use patterns is one of our most objective tools for assessing changes in management practices. This information allows us to build relevant databases for measuring user behaviors and adoption of new IPM technologies. For PCAs, it can translate their efforts into economic terms for their clientele and confirms their value to the lettuce industry by showing the importance of their cost-effective management in desert lettuce production. This summary provides estimates of insecticide use trends on lettuce over the past 16 years.
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.
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).
Jan 2019

Economic Value of Arthropod Biological Control

Publication

Authors: Naranjo, S.E., G.B. Frisvold, Peter C. Ellsworth
Oct 2018

Crop Protection & Pest Management Program Saves Lives, Dollars and the Environment in Arizona

Publication (PDF, 2.5MB)

Authors: Arizona Pest Management Center (APMC)

This piece highlights impacts of University of Arizona Extension IPM programs, funded by USDA National Institute of Food and Agriculture (NIFA).
Jun 2018

Insecticide Usage on Desert Lettuce, 2017-18

Publication (PDF, 328KB)

Authors: John C. Palumbo

A total of 25 surveys were completed of insecticide usage on desert lettuce, representing an estimated total of 44,180 fall acres and 37,720 spring lettuce acres from Yuma and neighboring Imperial County. This article concludes that the reduced risk insecticides will continue to play an increasing role in management of pests in desert lettuce.
May 2018

Impact of Bagrada Bug on Desert Cole Crops: An Eight Year Summary

Publication (PDF, 327KB)

Authors: John C. Palumbo

The bagrada bug became a major pest of cole crops since 2010. This report consists of information gathered through surveys over eight years and shows what some of the trends are regarding the bagrada bug over that time period.
Mar 2018

Adoption of proactive resistance management practices to control Bemisia tabaci in Arizona and California

Publication (PDF, 385KB)

Authors: Naomi Pier, Al Fournier, John Palumbo, Yves Carrière, Wayne Dixon, Lydia Brown, Steven J. Castle and Nilima Prabhaker, Peter C. Ellsworth

The goal of this project was to prepare pest managers to proactively manage whitefly resistance at the landscape level by providing them with Basic education on the 1st principles of resistance management and Insecticide use Maps.
Jan 2018

Assessing Compatibility of a Pesticide in an IPM Program

Publication

Authors: Farrar, J.J., P.C. Ellsworth, R. Sisco, M.E. Baur, A. Crump, A.J. Fournier, M.K. Murray, P.C. Jepson, C.M. Tarutani, K.W. Dorschner

Journal of Integrated Pest Management
Sep 2017

Chronicling the Socio-economic Impact of Integrating Biological Control, Technology, and Knowledge over 25 Years of IPM in Arizona

Publication

Authors: Ellsworth, P.C., A.J. Fournier, G. Frisvold, S.E. Naranjo

Integrated Pest Management (IPM) in Arizona cotton over the last 25 years has depended on the successful integration of biological and chemical controls along with other insect management knowledge and technologies. Contemporaneous measurement systems enabled economic evaluations with long-term datasets to examine economic outcomes and impacts, as well as durability of adopted technology.

ARIZONA PEST MANAGEMENT CENTER