2024 Pea Herbicide Chart
Julie Kikkert, Team Leader, Extension Vegetable Specialist
Cornell Vegetable Program

It is important to select the proper herbicides for a particular crop. To be most effective, the herbicide must be applied at the correct stage of crop development and weed size. The Relative Effectiveness of Herbicides Available for Use in Peas, 2024 chart gives details on rates, pre-harvest interval (PHI), and weed species controlled. However, it is critical to read the product label thoroughly.
Post-Emergence herbicides have very specific language as to which stage of the pea crop it can be applied to. Click on the Pea Growth Stage file for help with counting nodes in peas.
Weed Control Guide for NY: Relative Effectiveness of Herbicides Available for Use in Peas, 2024 (pdf; 191KB)
Pea Growth Stage: How to Count Nodes in Succulent Green Peas (pdf; 183KB)


Upcoming Events
Vegetable Pest and Cultural Management Field Meeting for Auction Growers -- Finger Lakes Produce Auction

July 18, 2025
Penn Yan, NY
This evening meeting will demonstrate pest management in fresh market vegetables in both field and greenhouse (high tunnel) vegetables, primarily for those growing for wholesale auction. A hands-on demonstration of weed, insect and disease identification in vegetables including management options. Details on each topic will focus on field observations at the farm.
Lake Erie Region Summer Meeting

July 24, 2025
Brant, NY
This meeting will cover organic and conventional management and will be relevant for producers of all sizes. This broad-reaching meeting will feature a mixed fresh market field walk, potatoes, sprayer calibration, and disease control in table and wine grapes. We'll cover organic and conventional controls and present information for growers of all scales of production.
2.0 DEC (0.5 CORE, 1.0 Veg, 0.5 Fruit)
Vegetable Pest and Cultural Management Field Meeting for Auction Growers -- Seneca Produce Auction

July 30, 2025
Romulus, NY
This evening meeting will demonstrate pest management in fresh market vegetables in both field and greenhouse (high tunnel) vegetables, primarily for those growing for wholesale auction. A hands-on demonstration of weed, insect and disease identification in vegetables including management options. Details on each topic will focus on field observations at the farm.
2.0 DEC credits in categories 10, 1a, 23, and 24.