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A new pyrethroid insecticide--Mustang, manufactured by FMC Corporation--received federal registration late last year for use on several field crops, including, but not limited to, alfalfa, corn, sorghum, soybeans, and wheat. The common name for the active ingredient is zeta-cypermethrin. Mustang contains 1.5 pounds of active ingredient per gallon. Following is a list of crops, rates of application, and selected insects for which Mustang is labeled for control: · Alfalfa, 2.4 to 4.3 oz per acre--alfalfa caterpillar, alfalfa weevil, cutworms, meadow spittlebug, potato leafhopper, webworms · Alfalfa, 3.0 to 4.3 oz per acre--grasshoppers, plant bugs · Corn, 0.16 oz per 1,000 feet of row (at plant)--cutworms · Corn, 1.4 to 3.0 oz per acre ("rescue" treatment)--cutworms · Corn, 1.9 to 4.3 oz per acre--corn earworm · Corn, 2.9 to 4.3 oz per acre--corn rootworm adults, European corn borer, flea beetles, grasshoppers, hop vine borer, Japanese beetle adults, sap beetle adults, southern corn leaf beetle, southwestern corn borer, stalk borer, stink bugs, webworms · Corn, 2.4 to 4.3 oz per acre--armyworm, chinch bug, fall armyworm · Sorghum, 1.4 to 4.3 oz per acre--cutworms, sorghum midge · Sorghum, 1.9 to 4.3 oz per acre--corn earworm, fall armyworm, webworms · Sorghum, 3.4 to 4.3 oz per acre--chinch bug, grasshoppers · Soybeans, 1.4 to 4.3 oz per acre--cutworms, thistle caterpillar, saltmarsh caterpillar · Soybeans, 3.0 to 4.3 oz per acre--bean leaf beetle, blister beetles, corn earworm, green cloverworm, Japanese beetle adults, Mexican bean beetle, plant bugs, potato leafhopper, soybean aphid, woollybear caterpillars · Soybeans, 3.4 to 4.3 oz per acre--grasshoppers, stink bugs, thrips · Wheat, 1.9 to 4.3 oz per acre--armyworm · Wheat, 3.4 to 4.3 oz per acre--chinch bug, grasshoppers For aphids that occur in some of these crops, the Mustang label indicates "Aids in Control." Mustang is a restricted use pesticide. Refer to the label for precautionary statements (e.g., hazards to humans and domestic animals, and environmental hazards), spray drift precautions, and preharvest intervals, as well as other label-specific information.--Kevin Steffey
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