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
New Farm Manager Skills Day - Get the Tools You Need to Grow Your People (Hudson Valley)
March 10, 2026 : New Farm Manager Skills Day - Get the Tools You Need to Grow Your People
Millbrook, NY
Are you moving into a supervisory farm management role this season and want to get off to a good start? Are you an experienced manager who wants to connect with other "people" managers and work on your skills? This one-day workshop is for you!
SPARC WSU Tree Fruit Heat School
March 11, 2026
As part of our multi-state SPARC SCRI project on mitigating orchard heat and cold stress, the WSU Tree Fruit Heat School will focus on understanding and managing heat-related challenges in apple and pear production. The program brings together research-based insights and applied discussions on sunburn physiology and mitigation, red color development in apples and pears, and the impacts of heat on postharvest storage and fruit quality. Each session will include an expert presentation, followed by a panel discussion with panelists from across the US.
Urban Ag Food Safety Webinar
March 11, 2026
Urban and small-scale producers are encouraged to join us for the Urban Ag Food Safety webinar, featuring speakers from Cornell Cooperative Extension and Cornell IPM. We will explore the 'why' behind food safety, providing a basic overview and diving into specific urban ag considerations including water, pest, rodent, and soil health challenges. We will touch on the regulation and marketing landscape, and share resources for learning more. Bring your questions!
