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.
Apples
Apricots
Asian Pears
Blueberries
Cherries
Currants
Gooseberries
Nectarines
Peaches
Pears
Plums
Raspberries / Blackberries
Strawberries
Unusual Fruit
Upcoming Events
Northeast Fruit Consortium Winter Webinar Series
February 4, 2026 : Management of Up and Coming Strawberry Diseases in the Northeastern United States
February 11, 2026 : Kiwiberry Production in the Northeast
February 18, 2026 : Apple Color and Sunburn
February 25, 2026 : The Dating Game; Updates in Lepidopteran Mating Disruption
March 4, 2026 : Update: USEPA Endangered Species Act and Implications for Pesticide Use
March 11, 2026 : Practical Drought Management for Fruit Growers
2026 Cornell Winter Fruit Webinars
January 22, 2026 : Blueberry Pruning and Soil Health to Minimize Pests and Maximize Yield
Week 1: Blueberry Pruning and Soil Health to Minimize Pests and Maximize Yield
January 29, 2026 : Cost of Production for Fruit Crops
Week 2: Cost of Production for Fruit Crops - A new tool for tree fruit, updates on berry production in NY, and strategies for tracking and using expense data.
February 12, 2026 : Fire Blight Management Updates
Week 3: Fire Blight Management Updates - Pathogen Biology, Defense Inducers, Biopesticides, and Pruning Therapies
February 19, 2026 : Pink and Petal Fall Insecticides - Can We Strike the Right Balance?
Week 4: Pink and Petal Fall Insecticides - Can We Strike the Right Balance?
March 12, 2026 : Inoculating Orchards with Mycorrhizal Fungi
Week 5: Inoculating Orchards with Mycorrhizal Fungi
March 19, 2026 : St. Peachtrick's Day - Cherry Pruning Strategies and Plum Varieties for the Northeast
Week 6: St. Peachtrick's Day - Cherry Pruning Strategies and Plum Varieties for the Northeast
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.