For glyphosate and paraquat, most cover crops can be planted after application. However, depending on the rate of 2,4-D applied, a waiting period of at least 1-4 weeks is necessary before establishing cover crops.
As corn and soybean planting approaches, a few best management practices for pre-plant burndown herbicide programs should be considered. John Wallace, a Penn State Extension weed management specialist, says burndown programs are most successful when applied in weather conditions that ensure targeted weeds and cover crops are actively growing (day temperatures above 55 degrees, and above 40 degrees at night). Read more in this article from Lancaster Farming.
The National No-Tillage Conference returns January 6-9, 2026!Build and refine your no-till system with dozens of new ideas and connections at the 34th Annual National No-Tillage Conference in St. Louis, Jan. 6-9, 2026. Experience an energizing 4-day agenda featuring inspiring general session speakers, expert-led No-Till Classrooms and collaborative No-Till Roundtables. Plus, Certified Crop Adviser credits will be offered.
For this episode, we are going to Nelson, Missouri to visit with Alan Weber as he discusses his use of cereal rye and other cover crops on his farm. Weber runs a diversified crop and livestock operation and he’s found cereal rye especially useful in reducing pigweed and waterhemp pressure.