In this week's article, educators review concerns on prussic acid development in sorghum plants, herbicide control for soapweeds in grazing lands and irrigating alfalfa this fall to help with stand stress.
The objective of the survey is to understand the main chemical weed control strategies and weed escapes in soybean and corn production fields during the 2021 growing season and to evaluate the interest and awareness regarding novel targeted herbicide spraying technologies.
Many warm-season cover crop species are available and can be used for different purposes in fallow fields, such as improving soil health, breaking up soil compaction, providing forage and supporting beneficial insects.
With increasing pressure from herbicide-resistant weeds such as kochia and introduced herbicide-resistant weeds such as Palmer amaranth and waterhemp, it is important to reduce spreading of weed seed. Doing a limited cleaning between fields and choosing which fields to harvest first can be an important factor in this endeavor.
The field day included demonstrations on best practices to reduce herbicide drift, study results on new herbicides to control Palmer amaranth in corn, and discussion on several other research projects.
Results of a study evaluating the efficacy and crop safety of labeled post-emergence herbicides to control velvetleaf, a major agricultural weed in Nebraska that reduces yields in popcorn if not controlled.