An Important Pruning Reminder
Mario Miranda Sazo, Cultural Practices
Lake Ontario Fruit Program
Cold hardiness is the ability of a plant to withstand low temperatures. Low temperature injury after a pruning cut can vary depending on when the low temperatures occurs (early vs. mid- or late-winter), how fast the temperature drops after the pruning cut, what the temperatures are the few days before and within 10-14 days after the pruning event, and how long the low temperatures are sustained in the orchard. Young trees are more sensitive to cold snaps after pruning than older trees. For those of you who produce fresh fruit we recommend you start pruning your older trees and the most resistant cultivars to winter damage first. The most resistant cultivars like McIntosh should be pruned now leaving the more sensitive cultivars until after January 1. Do not start your pruning of Empire, Red Delicious, Golden Delicious, Jonagold, and Mutsu at this time of the year just because you have the time and/or available labor force. Cutting done at this time (particularly making large chainsaw cuts) can predispose trees to winter injury if temperatures drop rapidly in the next couple of weeks. Hold off all pruning of most sensitive cultivars until trees have time to harden off under more cold weather. The more sensitive apple cultivars to winter damage after a pruning cut are: Golden Delicious, Red Delicious (more sensitive), Empire (more sensitive), Jonagold, and Mutsu. The apple cultivars with an intermediate susceptibility to winter damage after a pruning cut are: Paula Red, Cortland, Gala, Idared, and Greenings. The apple cultivars with less sensitive to winter damage after a pruning cut are: Honeycrisp and McIntosh (all strains).
Managing Crop Load of Apple Orchards by Pruning (pdf; 265KB)
Upcoming Events
2024 Tree Fruit & Small Fruit Twilight Meetings
April 25, 2024 : Tree Fruit & Small Fruit Twilight Meetings 1 of 4
Newark, NY
Join specialists Janet Van Zoeren, Anya Osatuke, and Anna Wallis for a conversation about fruit and berry phenology and pest management, at a new location each month.
May 30, 2024 : Tree Fruit & Small Fruit Twilight Meetings 2 of 4
Lockport, NY
Join specialists Janet Van Zoeren, Anya Osatuke, and Anna Wallis for a conversation about fruit and berry phenology and pest management, at a new location each month.
June 27, 2024 : Tree Fruit & Small Fruit Twilight Meetings 3 of 4
Penn Yan, NY
Join specialists Janet Van Zoeren, Anya Osatuke, and Anna Wallis for a conversation about fruit and berry phenology and pest management, at a new location each month.
July 25, 2024 : Tree Fruit & Small Fruit Twilight Meetings 4 of 4
Mexico, NY
Join specialists Janet Van Zoeren, Anya Osatuke, and Anna Wallis for a conversation about fruit and berry phenology and pest management, at a new location each month.
2nd Annual WNY Fruit Grower Tour
August 13, 2024
We are excited to announce the second annual Western New York Fruit Grower Tour, the premier fruit tour of the northeast brought to you by Cornell Cooperative Extension's Lake Ontario Fruit Program and Lake Ontario Ag Consulting, LLC! Located in Orleans County, this orchard field day will highlight new and existing products, chemistries, practices, technologies & equipment that shape the orchard industry today. The Western NY Fruit Grower Tour will again combine two past orchard tour events, the LOF Summer Fruit Tour and the Wayne County Fruit Grower Tour, giving industry members the opportunity to conveniently showcase their product offerings to ONE unified group at ONE time and place!
Save the Date - Western NY Fruit Conference - February 4-5, 2025
February 4 - February 5, 2025 : Western NY Fruit Conference
Rochester, NY
For the 2nd year in a row, we'll be having the Western NY Fruit Conference at the DoubleTree by Hilton Hotel in Rochester! It will be another 1 1/2 day conference. Stay tuned for program and registration info as we get closer.