Post-Harvest Weed Control: Get a Head Start Next Spring with a Clean Field
Fall is the BEST time to get to the root of your weed problems and get you a head start next spring with a clean field.
A post-harvest burndown can help control some of the worst weeds before they start to rob the soil of important moisture and nutrients which can impact next spring’s yields.
Some of the toughest perennial weeds, such as dandelion, are best controlled in the fall when these weeds start moving sugars into their roots in preparation for winter. This movement of sugars also carries systemic herbicides with it, like glyphosate and Express® herbicides, which makes systemic herbicides particularly so effective at this time of year.
A post-harvest burndown is also a great time to control winter annuals, like narrow-leaved hawk’s-beard and cleavers. If delayed until spring, an herbicide application may be less effective on these winter annuals as the plants are well established and may already be going to flower or seed.
We use Express® SG as a pre-seed application and at post-harvest. I like doing both, because doing a post-harvest application gives you a jumpstart on those hard to kill weeds and it gives you a nice clean field to seed into.