Citrus Pest Management

What Is the Economic Benefit of a Citrus Health Management Area (CHMA)? A Case Study

Ariel Singerman and Brandon Page

A Citrus Health Management Area (CHMA) is a group of growers who work cooperatively to coordinate insecticide application timing and mode of action in order control the insect vector of citrus greening disease. CHMAs help prevent insect vectors from moving between groves and reduce the likelihood that insects will develop pesticide resistance. This fact sheet analyzes the case-study data on yields of Valencia oranges from blocks located in two different categories of CHMAs to find the impact of citrus greening disease on citrus yields and provide evidence on the effectiveness of best class CHMAs as a way to deal with the disease. The analysis provides evidence that CHMAs can enhance an individual grower’s profitability at a time when margins are becoming increasingly narrow.

To Push or To Clip: That is the Question

Stephen H. Futch, James H. Graham, and Larry W. Duncan

Trunk Injection to Deliver Crop Protection Materials: An Overview of Basic Principles and Practical Considerations

Leigh Archer, Ute Albrecht, and Jonathan Crane

This new 8-page article presents an overview on the use of trunk injection for the targeted delivery of protection materials to agricultural crops to manage pests and diseases. Different methods of injection are described along with the underlying plant physiological principles, possible implications on the tree, and other concerns and considerations. Written by Leigh Archer, Ute Albrecht, and Jonathan Crane, and published by the UF/IFAS Horticultural Sciences Department.