Precision Crop Load Management
Anna Wallis, Tree Fruit and Grape Specialist
Eastern New York Commercial Horticulture
Precision Crop Load Management (PCLM) is a 3-step process of managing apple crop loads more precisely:
1. Prune to a specific flower bud number
2. Chemically thin to a specific fruit number
3. Hand thin to a specific fruit number
PCLM VideosThe link below includes 3 PCLM videos produced by the Lake Ontario Fruit Team on PCLM.http://www.goodfruit.com/videos-teach-precision-crop-load-management/
Precision Chemical Thinning
Precision Chemical Thinning is the second leg of managing apple crop loads more precisely in the Precision Crop Load Management system. It utilizes sequential chemical thinning sprays guided by the use of the carbohydrate model and the fruit growth rate model to more consistently achieve a target crop load.
The presentation below on Precision Chemical Thinning was given by Terence Robinson on April 29, 2015. It explains the steps involved and outlines the protocol for the thinning trial being conducted in the 2015 season.
A recording of the precision thinning WebEx presentation can be viewed herehttps://cornell.webex.com/cornell/ldr.php?RCID=56af8ee7a0c79a21953bf8314ef9b81b
Interested in Participating in the 2015 Precision Thinning Program?
Please contact Dan Donahue djd13@cornell.edu or Anna Wallis aew232@cornell.edu of the Cornell Cooperative Extension Eastern New York Commercial Horticulture Program if you would like to train your farm employees to conduct fruit measurements this year. Do not forget to send your target fruit number and flower cluster counts to Terence Robinson (tlr1@cornell.edu) by full bloom).
Precision Thinning 2015 TR (pdf; 1635KB)
- Presentation given on 4/29/15

Upcoming Events
I thought I was covered for that! Farm Insurance Webinar Series, Jan-Feb 2026
January 13, 2026 : Session 1: Insurance and Risk Management 101
Insurance and Risk Management 101. This first webinar will cover many of the general provisions found in insurance policies and describe some of the terms to be aware of when you are considering your options. Steve Hadcock, Capital District Hort Team and Greg Murk, FarmNet.
January 20, 2026 : Session 2: Liability Insurance
Coverage for the risk that your business will cause harm to someone. Are you having people on your farm or selling a food product? You might need liability insurance. Robert Hadad, Cornell Vegetable Program, Elizabeth Higgins, Eastern NY Commercial Hort Program.
January 27, 2026 : Session 3:Protecting Yourself from Disasters (Crop Insurance, USDA FSA programs and Flood Insurance)
Are you protected from a weather event on your farm? Learn about your options for Disaster Coverage (crop insurance, FSA programs, flood insurance). Elizabeth Higgins, Eastern NY Commercial Hort Program.
February 3, 2026 : Session 4: Insuring People (health, life and disability insurance)
Options for health insurance, life insurance and disability insurance, and how they can help farmers and their employees. Maire Ullrich, CCE Orange County and Lucas Smith, Cornell Ag Workforce Development
February 10, 2026 : Session 5: Property Insurance
Insuring your infrastructure, equipment, and livestock from loss. Learn about the types of coverage, and the risks they reduce. Colin Hostetter, Tri-County Ag Team, Desiree Keever, CCE Delaware County and Steve Glick, Kevin Daniels Agency.
How to Diversify or Scale Up with Confidence for Profitability - Inspired by Annie's Project
February 4, 2026
February 11, 2026
February 25, 2026
Do you have an idea for a new enterprise to add value to your farm? Maybe you're considering scaling up for a potential market opportunity but just aren't sure if it's a good fit for your business. Join Cornell Cooperative Extensions of Allegany County, Broome County, Madison County, Onondaga County, Niagara County, Tioga County, the Niagara Small Business Development Center, and the Eastern NY Commercial Horticulture Team for a hybrid series on Wednesdays in February, starting on February 4th that will answer these questions and more. Annie's Project seeks to empower farm women through education, networks and resources. We welcome, and encourage, learning and sharing amongst farm women as we help you grow as decision-makers and leaders on your farm.
2026 Northeast Extension Fruit Consortium Winter Webinar Series
February 4, 2026 : Management of Up and Coming Strawberry Diseases in the Northeastern United States
Session 1: Management of Up and Coming Strawberry Diseases in the Northeastern United States
February 11, 2026 : Kiwiberry Production in the Northeast
Session 2: Kiwiberry Production in the Northeast
February 18, 2026 : Heat Mitigation- Sunburn and Fruit Coloring
Session 3: Heat Mitigation- Sunburn and Fruit Coloring
February 18, 2026 : The Dating Game- Updates in Lepidopteran Mating Disruption
Session 4: The Dating Game- Updates in Lepidopteran Mating Disruption
March 4, 2026 : USEPA Endangered Species Act Strategies and Pesticide Use
Session 5: USEPA Endangered Species Act Strategies and Pesticide Use
March 11, 2026 : Practical Drought Management for Fruit Growers
Session 6: Practical Drought Management for Fruit Growers
