Crop Load Management
Mario Miranda Sazo, Cultural Practices
Lake Ontario Fruit Program
Crop load management is the single most important yet difficult management strategy that determines the annual profitability of apple orchards. The number of fruit that remain on a tree directly affects yield, fruit size and the quality of fruit that are harvested, which largely determine crop value. If thinning is inadequate and too many fruits remain on the tree, fruit size will be small, fruit quality will be poor and flower bud initiation for the following yearââ¬â¢s crop may be either reduced or eliminated. Consequently, poor or inadequate thinning will reduce profitability in the current year and result in inadequate return bloom in the following year. Over thinning also carries economic perils since yield and crop value the year of application will be reduced and fruit size will be excessively large with reduced fruit quality due to reduced flesh firmness, reduced color and a much-reduced postharvest life. Thus, management of crop load is a balancing act between reducing crop load (yield) sufficiently to achieve optimum fruit size and adequate return bloom without reducing yield excessively.
Upcoming Events
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.
2026 Wayne County - Certified Pesticide Applicator License Exam
April 2, 2026
Newark, NY
A Certification Exam will be administered on April 2nd by the DEC to Qualified Applicants.
