Using the Decision Triad for Treatment Thresholds
Three tools are used to monitor populations: predictive models, adult traps, and visual inspections. Understanding the application and limitations of these tools are essential for management decisions.
Scouting your Orchards
Estimating the population level of codling moth in commercial orchards is challenging. In addition to trap counts and use of models, visual observation of fruit injury can provide valuable information about the level and distribution of codling moth in an orchard. If fruit injury monitoring reveals injury levels of 0.5% or more then increased controls should be implemented.
By Jay Brunner, originally published 1993, revised 2018
Rotator Images
360-Rotator: Codling Moth – External Damage
360 Rotator: Codling Moth – Internal Damage
Scouting and Managing Orchards
Orchard pest management, like pruning and thinning, is expensive and conducted on viable blocks. Abandoned or neglected orchards can lead directly to high populations of codling moth infesting neighboring blocks. Industry leader and consultant Jill Tonne describes how to assess your orchard’s health to adjust pest management decisions.
Use pesticides with care. Apply them only to plants, animals, or sites listed on the labels. When mixing and applying pesticides, follow all label precautions to protect yourself and others around you. It is a violation of the law to disregard label directions. If pesticides are spilled on skin or clothing, remove clothing and wash skin thoroughly. Store pesticides in their original containers and keep them out of the reach of children, pets, and livestock.
YOU ARE REQUIRED BY LAW TO FOLLOW THE LABEL. It is a legal document. Always read the label before using any pesticide. You, the grower, are responsible for safe pesticide use. Trade (brand) names are provided for your reference only. No discrimination is intended, and other pesticides with the same active ingredient may be suitable. No endorsement is implied.
