Clearly this year, many are having trouble managing ryegrass and poa. Questions began months ago and continue today and have ranged from tactics to burn them down before planting to how to control them in a standing corn crop. What has become abundantly clear is that glyphosate is no longer an effective burn down option for either species across much of the state. Continue reading
This is the second in a series of blogs on research that Dr. Tom Mueller and I did to examine some of the directions on the XtendiMax and Engenia labels. In the second test, we examined the effect on spray solution pH when AMS was added to Engenia or XtendiMax, with or without glyphosate. Continue reading
With the off-target dicamba movement in recent years, Tennessee soybean growers asked my colleague, Dr. Tom Mueller, and me to vet some of the directions on the XtendiMax and Engenia labels. The goal was to come up with information to help mitigate off-target dicamba. In a series of blog posts this week, we will share our most current findings. Continue reading
Sprayers are rolling across Tennessee. Most are trying to catch up as we are well behind the burndown pace of many Tennessee springs. Typically by late March we have a good bit of corn ground burned down and often have a few acres planted. The current 10 day forecast calls for a good chance of rain just 2 days out of those 10. Regardless of whether the forecast is accurate or not, corn burndown and planting will have to occur fairly close together. Continue reading
The EPA will be requiring that anyone who purchases, mixes or applies a paraquat containing herbicide to take the “How to Safely Use and Handle Paraquat-Containing Products” online training module. Continue reading
Clethodim is quickly replacing glyphosate as the “go-to” herbicide for grass control in West Tennessee. It began a few years ago as folks found that ryegrass and poa in many fields could no longer be controlled with glyphosate. In more recent years the pace has accelerated as the spread of glyphosate-resistant (GR) summer grasses like goosegrass, jungle rice and Johnsongrass have made it necessary to add clethodim to glyphosate to “prop up” the grass control. Continue reading
In this episode, Dr. Avat Shekoofa discusses research on the impact of different cover crop species, as well as different cover crop termination timings, on pigweed germination. Listen. Continue reading
There have been quite a few phone calls recently with questions on wheat weed control. A big difference from previous years’ late winter calls on wheat is that no crop inputs have been able to be applied due to all the wet weather. As such many wheat fields have well established weeds. Continue reading