Managing Codling Moth In Apples
Deborah Breth, Integrated Pest Management
Lake Ontario Fruit Program
Are Worms Eating Up Your Profits?!?!
If your packers and processors are reporting worm holes, or worms, it is likely you have a high population of codling moth (CM, Cydia pomonella) and/or oriental fruit moth (OFM, Grapholita molesta) that are causing economic losses in your fruit. It is time to take steps to prevent this damage. The tools that are used to control these pests include pheromone trapping, implementing mating disruption pheromones to prevent mating, improving spray timing using degree-day models and trap data, improving spray coverage, and using the most effective insecticides and viruses at the recommended timing. Please see following .pdf for steps to control internal leps.
Managing Codling Moth In Apples (pdf; 596KB)
Upcoming Events
Harmonized GAP Plus+ Plan Writing Session
March 20, 2026
Newark, NY
Join us for this specialized workshop to cover requirements for this specific audit. Commercial fruit and vegetable growers are increasingly being asked to have the Harmonized GAP Plus+ audit to satisfy some large buyer's requirements.
Pesticide Applicator Review Course & Exam
March 24, 2026 : Review Course - Day 1
Newark, NY
This 2-day course will go over the core information to help applicators pass the applicators exam, which students will take on April 2nd after the course is concluded. *Note: This is not the 30-hour course, and you will need to meet the requirements set by the DEC to qualify for the exam.*
March 26, 2026 : Review Course - Day 2
Newark, NY
This 2-day course will go over the core information to help applicators pass the applicators exam, which students will take on April 2nd after the course is concluded. *Note: This is not the 30-hour course, and you will need to meet the requirements set by the DEC to qualify for the exam.*
2026 Tree Fruit Scouting Online Course
February 25, 2026 : Week 1 - IPM Fundamentals + Tools
This course trains tree fruit growers, orchard employees, industry professionals and interested students on the biology, identification and monitoring of major economically significant orchard pests, using an integrated pest management (IPM) approach. This course is FREE and provides an annual opportunity for growers to refresh their knowledge in advance of the growing season. Register by February 18th.
March 4, 2026 : Week 2 - Insects: Part 1
This course trains tree fruit growers, orchard employees, industry professionals and interested students on the biology, identification and monitoring of major economically significant orchard pests, using an integrated pest management (IPM) approach. This course is FREE and provides an annual opportunity for growers to refresh their knowledge in advance of the growing season. Register by February 18th.
March 11, 2026 : Week 3 - Insects: Part 2
This course trains tree fruit growers, orchard employees, industry professionals and interested students on the biology, identification and monitoring of major economically significant orchard pests, using an integrated pest management (IPM) approach. This course is FREE and provides an annual opportunity for growers to refresh their knowledge in advance of the growing season. Register by February 18th.
March 18, 2026 : Week 4 - Diseases
This course trains tree fruit growers, orchard employees, industry professionals and interested students on the biology, identification and monitoring of major economically significant orchard pests, using an integrated pest management (IPM) approach. This course is FREE and provides an annual opportunity for growers to refresh their knowledge in advance of the growing season. Register by February 18th.
March 25, 2026 : Week 5 - Weeds, Wildlife, + Wrap-Up
This course trains tree fruit growers, orchard employees, industry professionals and interested students on the biology, identification and monitoring of major economically significant orchard pests, using an integrated pest management (IPM) approach. This course is FREE and provides an annual opportunity for growers to refresh their knowledge in advance of the growing season. Register by February 18th.
