One of the first steps to a successful herbicide program is starting clean to allow the pre-emerge herbicide to reach the soil surface. The burndown also allows the opportunity to utilize other “effective” sites of action (SOA) that can’t be used in-season such as Gramoxone® SL 2.0. Spraying early in the spring provides the opportunity to control winter annuals like marestail and emerging summer annuals such as giant ragweed. When evaluating spring burndown options, we must consider if the herbicide has burndown only activity or burndown plus residual activity. Products like Liberty® and Gramoxone SL 2.0 will not have any residual activity but will provide very effective burndown activity. Other burndown products such as Sharpen® or metribuzin will provide residual value depending on the herbicide rate.
Categories: CropTalk, 2021
Tags: CropTalk, Marestail, PFR, burndown, Dicamba
With the new herbicide-tolerant traits on the market today and the many to come in the near future, this is a good opportunity to discuss some common herbicide injury symptomology that is documented every year.
Categories: CropTalk, 2019
Tags: CropTalk, soybeans, herbicides, Dicamba, 2019, auxins, 2, 4-D