What is in this article?:
• Farmers in the Southeast knew going into the 2011 spring planting season that Temik was being taken off the market — gradually up to 2016.
• They didn’t count on a lawsuit in West Virginia stopping production and significantly restricting the amount of Temik available for the 2011 cropping season.
• The fallout from shortages in Temik supply has already been significant in determining what crops farmers do and don’t plant.
Resistant peanut varieties not great option
Nematode resistant, even nematode-tolerant peanut varieties are not a great option for peanut growers seeking Temik options. Three varieties are available, though the first two COAN and NemaTam may be in short supply due to lack of demand over the past decade or so.
A more viable variety for runner type growers in the Southeast is Tiftguard. In addition to resistance to root knot nematodes, Tiftguard has resistance to tomato spotted wilt virus.
Since its release in 2008, tests in Georgia and Florida indicate this runner type variety grown in fields with either problem will produce higher yields than the more commonly used varieties, which are susceptible to nematodes or TSWV.
Thrips are a serious threat to peanuts in the Southeast for a couple of reasons. These tiny insects can cause serious crop stunting and yield loss from feeding on immature peanut plants.
Perhaps more damaging to peanuts is tomato spotted wilt virus, which is spread by thrips. TSWV is especially challenging for peanut growers because it occurs so sporadically. When occurring at high levels and on varieties that are highly susceptible to the disease, TSWV can cause devastating yield losses.
For a long, long time Temik has been the standard treatment for thrips control in peanuts. There is short list of replacements, primarily phorate-containing materials, primarily Thimet and Vydate, a carbamate that contains the active ingredient oxymil.
Phorates can be particularly challenging for growers who grow both peanuts and cotton. Thimet is one of several organo-phosphate materials linked to problems with diuron, and fluometuron herbicide use in cotton.
Growers should carefully check the label of any diuron-containing herbicide used in conjunction with a phorate-containing product.