Pesticide Resistance

Management of Whiteflies, Whitefly-Vectored Plant Virus, and Insecticide Resistance for Tomato Production in Southern Florida

Hugh A. Smith, Philip A. Stansly, Dakshina R. Seal, Eugene McAvoy, Jane. E. Polston, Phyllis R. Gilreath, and David J. Schuster

Managing Insecticide and Miticide Resistance in Florida Landscapes

Nicole Benda and Adam Dale

Managing Resistance to Diamide Insecticides in Florida Tomato

Hugh A. Smith

This publication discusses optimal placement of diamide insecticides in the context of season-long insecticide rotations for management of pests of tomato. It describes the treatment interval approach to managing insecticide resistance.

Understanding Insecticide Modes of Action and Resistance Management in Florida Horticulture

Hugh Smith, Adam Dale, and Julien Beuzelin

This publication is designed to help UF/IFAS Extension agents and members of the public understand insecticide modes of action and resistance management as they pertain to vegetables, field crops, turf, and ornamental plants.

Insecticides Used in the Urban Environment: Mode of Action

S. M. Valles and P. G. Koehler

A UF/IFAS numbered Fact Sheet for General Public and Homeowner audience(s).

Pesticide Mode of Action Classification: Understanding Resistance Action Committees (RACs)

Emily C. Kraus and Brett Bultemeier

This publication defines the concept of a pesticide mode of action and provides several examples. It emphasizes the importance of identifying and differentiating modes of action for pesticide resistance management. To this end, it defines the development and goals of the three Resistance Action Committees for insecticides (IRAC), herbicides (HRAC), and fungicides (FRAC) and describes each group’s pesticide mode of action classification scheme. Finally, it provides an example of a pesticide label and instructs applicators on how to rotate pesticides to manage resistance. This publication presents the subject matter in a concise manner and directs pesticide applicators to the very useful RAC Mode of Action group numbers for rotation purposes. 

Recommendations for Management of Whiteflies, Whitefly-Transmitted Viruses, and Insecticide Resistance for Production of Cucurbit Crops in Florida

Xavier Martini, Mathews Paret, Jane E. Polston, Scott Adkins, Pamela Roberts, Teresia Nyoike, and Oscar E. Liburd

This publication lists and describes common viruses spread in cucurbit crops by whiteflies. It includes strategies for managing whiteflies, most of them originally from a similar publication on managing whiteflies in tomatoes.

2024–2025 Florida Citrus Production Guide: Pesticide Resistance and Resistance Management

Lauren M. Diepenbrock, Megan M. Dewdney, and Ramdas Kanissery

2024–2025 Florida Citrus Production Guide

Can Pest Management be Sustainable?

Entomology Emily

Hello Avid Readers! Have you ever been concerned that your pest management tactics aren’t very environmentally friendly?  Have you asked yourself can pest management be sustainable? Well lucky for you the answer is yes! There are more and more options available to reduce the nontarget effects of pest management on the environment. I’ve gathered a […]

A World Without Pesticides

Entomology Emily

Hello Avid Readers! Does it sound great to have a world without pesticides? Your answer to this question likely depends on what you know about pesticides. Generally, a pesticide is a substance that deters or kills an organism that is harming human health, agriculture, the environment, or the economy. This could be a synthetic chemical […]

Pesticide Resistance: Does it Really Matter?

Dr. Brett Bultemeier

The use of modern pesticides didn’t ramp up until the late 1940’s. This era provided a seemingly unending stream of new products that became increasingly more effective, selective, and consistent. Unfortunately, it wasn’t long until products started losing their effectiveness. Pest managers were largely uninterested in resistance since new products were coming along each year, […]