Update on new herbicides for Kansas crops in 2020
Herbicides that have gained approval for use in agronomic crops in 2020 are discussed in this article, as well as some products that anticipate approval for 2020. Remember to always read and follow label directions.
Herbicide availability concerns for this growing season
There has been considerable talk about limited availability of herbicides for the summer of 2021. What steps can farmers take in the event that herbicide supplies become limited? Dr. Sarah Lancaster offers some of her recommendations in this article.
Plan now for weed management in 2022
Harvest is always a great time to start planning weed management strategies for the next spring. Forming a plan now to address needs for next spring is especially important this fall due to the anticipated shortages of key herbicides. Learn what you can do to minimize the impact of a possible chemical shortage.
Planting winter canola? Be aware of rotation restrictions with herbicides
Recent developments associated with market opportunities for winter canola may lead to increased planting in the fall of 2023. As you make seeding plans, consider the herbicides you use in your summer crops. This article highlights some herbicides used for summer crops that may or may not have rotation restrictions for canola.
Herbicide applications and high temperatures
Warmer temperatures are in the forecast for the latter part of June across Kansas with warmer-than-normal temperatures expected for July. Some considerations should be taken during hot weather when making herbicide applications to help ensure the best response.
Planting winter canola? Be aware of rotation restrictions with herbicides
Recent developments associated with market opportunities for winter canola may lead to increased planting in the fall of 2023 and beyond. When making seeding plans, be sure to consider the herbicides used this summer and those planned for the fall.
Herbicide applications: Avoid a tank-mix mishap
Tank-mixing herbicides and other agrichemicals is necessary to increase weed control and use machine hours wisely. Unfortunately, the likelihood of physical incompatibility increases as the number of products added to a tank-mix increases. This article will briefly overview the principles of tank-mix order for herbicide applications.
label requirements herbicides herbicide application tank mix
Herbicide applications and high temperatures
Much warmer temperatures are forecast for the latter part of June across Kansas. If you are planning herbicide applications, there are some important considerations when applying these chemicals during periods of high temperatures.
Self-guided tours of herbicide evaluation plots are open near Manhattan
Each summer, the Extension Weed Science team evaluates herbicide programs for corn and soybeans. These plots are located near Manhattan, KS, and can be visited at your schedule. Feel free to drop by anytime. Information about the herbicide treatments will be accessible if you have a smartphone.
Control annual weeds with fall-applied herbicides ahead of corn and sorghum
With row crop harvest well underway, it is time to start planning fall herbicide applications. Herbicide applications in late October through November can improve control of difficult winter annual weeds. Some key weeds to target with fall herbicide applications are marestail, henbit, dandelion, prickly lettuce, pepperweed, field pansy, evening primrose, mustard species, and recently-emerged cool-season grasses.
weed control herbicides annual weeds fall-applied herbicides
Cover crop response to herbicides
As fall progresses, some producers consider seeding winter cover crops in fields currently planted to corn. A number of factors, including the plant's biological and biochemical characteristics, the herbicide's chemical characteristics, and weather conditions since herbicide application, will influence the cover crop's response to herbicides.
Residual herbicides for corn
Residual herbicides that kill weed seeds/seedlings as they germinate or emerge are important for herbicide applications at or before corn planting. In general, preventing the emergence of weeds, especially herbicide-resistant weeds, is preferable to controlling them after they emerge.
Improve weed control by combining residual herbicides with varying water solubility
Applying multiple residual herbicides is a recommended practice, with combinations generally designed for effectiveness on the range of weed species in the field. One factor that may be overlooked when selecting herbicide combinations is the water solubility of the herbicides.
Preemergence herbicide options for grain sorghum
Effective weed management in grain sorghum starts with a solid residual herbicide program at planting. With limited postemergence options and growing herbicide resistance, a proactive approach using multiple sites of action is key, especially for tough weeds like Palmer amaranth.
sorghum grain sorghum herbicides pre-emergence residual herbicides