Weed Control in Asparagus
Chuck Bornt, Team Leader, Extension Vegetable Specialist
Eastern New York Commercial Horticulture
If you haven't already done your pre-emergent herbicide treatments in your asparagus, it's getting that time! Rutgers University in New Jersey recommends 2.5 lb Solicam DF plus 1-2 lbs Karmex DF (do not apply more than 3 pounds per season), 14 days prior to spear emergence (that's the pre-harvest interval) which means applications need to be going out very soon if not immediately (for beds that are at least 1 year old)! This tank mix works on a wide range of pre-emergent broadleaves and grass weeds and is relatively safe to the asparagus. Both of these materials will not work on already growing weeds and also work better if moisture is received soon after application. If weeds are present, the addition of Gramoxone or other paraquat containing material will help control those weeds already established. The addition of Calisto at 3.0 ozs per acre can also improve residual and Common Larmbsquarter and horseweed (marestail or stickweed) control.
Weed Control in Asparagus (pdf; 141KB)

Upcoming Events
2026 Hudson Valley Apple Storage Workshop
July 13, 2026 : 2026 Hudson Valley Apple Storage Workshop
Highland, NY
If you operate an apple storage in the Hudson Valley or in the Northeast please Join Dr. Yosef Al Shoffe of Cornell University, Ithaca, NY, Dr. Scott Cossaboom of the Cornell Hudson Valley Laboratory, Highland, NY, and Dan Donahue of the Cornell Cooperative Extension ENYCHP for the latest apple storage research and harvest management updates.
2026 Champlain Valley Summer Orchard Field Tour
July 15, 2026 : 2026 Champlain Valley Summer Orchard Field Tour
Keeseville, NY
Join the ENYCHP and Cornell scientists on July 15 for our annual Champlain Valley Summer Orchard Meeting! This year we will be meeting at Hart Apple Farm to learn about the varieties they are growing in one of their newer plantings, hear updates from faculty and extension agents on their current research projects, and view a few of Mike's local thinning projects firsthand.
DEC credits in categories 22, 1A, and 10 will be available. Refreshments will be provided.
Free to attend, however we do ask that you register ahead so we know how many people to expect. Rain date is July 16.
2026 Hudson Valley Berry Field Day
July 15, 2026 : 2026 Hudson Valley Berry Field Day
Kinderhook, NY
Join specialists Heather Kase, Scott Cosseboom, Nathaniel Westrick, and Anna Wallis for updates and a review of berry phenology and pest management. Presentations will be given on berry horticultural and pest management considerations for strawberries, blueberries, brambles, and minor fruit crops. Light refreshment & snacks will be provided. Registration is encouraged but there is no fee for attendance. 1.00 DEC credit will be available in categories 10, 1a, and 22
