What is in this article?:
• Thomas, Jarrell developed a soil map for most of the 1,500 acre farming operation he operates with his father B.L. Jarrell.
• The map shows fields categorized as low, medium and high risk for developing damaging nematode populations.
• Using a simple off-on system developed by Clemson University researchers, he uses a simple variable rate application method to apply higher rates of nematicides in fields with higher risks of nematodes and applies less or none to fields with low risk of nematode damage.
Difficult to apply
“There is no question that Telone is difficult to apply, it’s costly ($40-45 per acre), it’s more time you have to spend to get it applied right and you have to be real cautious with it,” he notes.
“However, when you run the picker through the cotton field and you see 200-300 pounds more cotton, it makes it all worthwhile.
Quick math backs up that assertion — 300 pounds of cotton is worth over $300 on today’s market. For a $45 per acre investment, Telone is sure to be a good economical decision, if you know nematode populations are high.
Jarrell’s father says like most farmers they missed a few spots with Telone, and the results are easy to see. “You can see it to the row where we didn’t apply Telone in some of these sandier fields,” he adds.
The Temik shortage has forced Jarrett to use all he could find in his cotton and to use Thimet under peanuts. This product may cause phytotoxicity, particularly under cool wet conditions and should not be used following diuron-containing herbicides such as Karmex and Direx.
For cotton and peanut growers, like the Jarrells, that could be a challenge, because diuron is an integral piece of the puzzle in managing glyphosate resistant weeds.
With Temik and seed treatments dominating the market for the past decade or more Thimet has not been evaluated in recent years. If a producer elects to use it, North Carolina State University Entomologist Jack Bachelor says trying it on limited acreage in 2011 may be a good idea.
While Temik has been used extensively for thrips control and for managing low to medium populations of nematodes, Thimet does not provide control of nematodes.
Though nematode tolerant varieties, especially Phytogen 367, have performed well in some areas of the Southeast, Jarrell says he is a hard-core Deltapine man. “The DPL seed we get has always done a good job for us”. That said, the South Carolina grower says he will likely grow a few acres of Phytogen 367 on some of nematode infested cotton land in 2011 — in part due to the lack of Temik.
“Everybody is going to have to figure out what to do without Temik. We were expecting it to be gone in a few years, but not this year.
“I’d tell anyone who knows they have a problem with nematodes, don’t be afraid of using Telone. Don’t be afraid of the cost, because it’s going to pay for itself — the key is to know where you do and where you don’t have a nematode problem.
“It’s all a part of being more efficient with everything you do on the farm. The crops are more valuable than they have ever been and the cost to produce these crops is higher than ever, so anything you can do to get more out of every row of a crop is going to pay off more than ever,” Jarrell concludes.