There are three newer corn herbicide premixes available: Acuron GT, Armezon PRO and Resicore. Below are some thoughts on these newer premixes as well as some that have been around for a spell: Continue reading
The combination of some lingering supply chain issues, most notably Sharpen and Verdict are in tight supply, with the ever-increasing presence of herbicide resistant weeds has made burndown time more of a challenge. On a positive note, glyphosate is in great supply and down in price about 40% compared to last year. Continue reading
The Environmental Protection Agency (EPA) has proposed additional mitigations and regulations on the use of atrazine. The open comment period will close this Friday October 7. If you are interested in commenting see this link. I know that it is a very busy time of year but please consider making a comment on this topic. You all are the experts since you steward this herbicide, on many acres, each spring and your comments have more value than many that are sent. Continue reading
As the time to start harvesting corn quickly approaches, we have had a few calls about scouting for ear rots and managing mycotoxins. Continue reading
The EPA is soliciting public comment on a petition from several organizations to cancel remaining organophosphate (OP’s) insecticide registrations. OP’s are widely utilized in Tennessee row crop agriculture and are critical components of IPM programs. Cancelling an important crop protection product would place increased pressure on a limited number of control options available to producers. We are encouraging agricultural professionals to comment to the EPA on the impacts OP’s have on your production systems. If you need assistance with comments please contact your UT extension specialist. The link to comment is below. Deadline for comments is August 11, 2022.
Organophosphate registrations Regulations.gov
EPA–HQ–OPP–2022–0490
I’ve gotten a few phone calls inquiring about our bollworm moth trap catches and what the populations are doing. To date, we’ve only had one trap catch that was in the double digits and that was on the WTREC research station. Our trapping runs began in May and will continue through August across West TN. We are still on the early side for bollworms to appear in cotton and once we begin to see consistent numbers across our catches, I’ll update our numbers on the blog. Keep a look out for eggs and kicking up moths as you scout cotton and soybeans. The drought situation and overall poor condition of corn may have an impact on the bollworm generation migrating out of corn, we’ll see the results of that in the coming weeks.
Even with some rain in the forecast, the dry to drought conditions in Tennessee have reduced disease development and hence reduced the potential to break even on a fungicide in corn.
Corn is not sensitive to water limitations in early vegetative stages, but it’s important to watch the growth stages and soil type when timing irrigation. After V8, corn undergoes rapid vegetative growth and ear size determination begins (Table 1). A corn plant’s irrigation requirement will drastically change with the onset of hot and dry conditions such as are being experienced this month (Figure 1). Continue reading