The forecast, unfortunately, would suggest we are in store for another hot and dry week. That persistent weather pattern makes the challenging aspect of weed control more difficult which leads to questions. One common one is how long a residual herbicide will persist on the soil surface before a rain activates it? Another common question during long stress periods is the poor weed control from a POST application due to resistance or dry weather. Continue reading
What are some options to control volunteer XtendFlex soybeans in XtendFlex cotton fields? This issue is something that we need to do research on as there is no data. As such in answering the question one has to rely exclusively on experience. Unfortunately, all the experience that I and my Midsouth colleagues have does not hint at a real good option to remove these volunteers. Continue reading
Some of the earlier planted cotton fields will soon be entering the true “laying it by” application timing. Given that some are clearly not successful spraying Palmer amaranth, goosegrass or junglerice with glyphosate + dicamba (Picture 1 and 2), going back to an “old school” layby is a good plan. Continue reading
Getting reports from several consultants frustrated with the lack of Palmer amaranth control after applications of either Dicamba or Enlist One in cotton and soybean. Indeed, in our second year of field research at locations where dicamba or 2,4-D provided sketchy pigweed control in 2021 we are seeing similar if not worse Palmer amaranth control in 2022 (Picture 1). Continue reading
There have been several reports last week of multiple glyphosate and/or clethodim applications not controlling barnyardgrass or junglerice. We really do not know the precise reasons for the lack of control in any given field but based on previous research and past experience there are a couple likely causes. Continue reading
JACKSON, Tenn. – The University of Tennessee Institute of Agriculture will host the annual Weed Tour is this Wednesday, June 15 at the West Tennessee AgResearch and Education Center. The guided tour will feature 40 weed management research tests in corn, soybean and cotton as well as a demonstration of herbicide symptomology. Continue reading
Judging by our research plots as well as walking some cotton and soybean fields most Pre applied herbicides are playing out about 7 to 10 days quicker than last spring (Picture 1). The frequent rain would most likely be the reason for this. Continue reading
JACKSON, Tenn. – The University of Tennessee Institute of Agriculture will host the annual Weed Tour next Wednesday, June 15 at the West Tennessee AgResearch and Education Center. The guided tour will feature 60 weed management research tests in corn, soybean and cotton as well as a demonstration of herbicide symptomology. Continue reading