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New Products for Insect Control

March 20, 2003

Some new products for insect control have been labeled within the past few months, so you should be aware of them for consideration while developing insect management plans for 2003. Cruiser, another nicotinoid seed treatment, was registered for use on corn late in 2002 and was discussed in Bulletin issue no. 24 (November 1, 2002). You also should be aware of some other recently registered products. Following are brief discussions of these new products, in alphabetical order by trade name.

Empower (active ingredient bifenthrin), a Helena Chemical Company product. This granular pyrethroid insecticide has the same active ingredient as Capture. However, Empower contains Asset Formulation Technology. Empower can be applied at planting in a band or in the seed furrow for control of corn rootworm larvae (band only), cutworms, seedcorn beetles, seedcorn maggot, white grubs, and wireworms. The application rates are 6.4 to 8 ounces of product per 1,000 feet of row in a band and 3.2 to 8 ounces of product per 1,000 feet of row in the seed furrow. Empower also can be applied to foliage at 3.5 to 8.7 pounds of product per acre for control of first-generation European corn borer, fall armyworm, and southwestern corn borer. We assume that the efficacy of this product is equivalent to the efficacy of Capture. However, we have not seen much efficacy data. We expect to test this product in research trials in 2003.

Herculex I Insect Protection (expresses the Cry1F insecticidal protein), a Dow AgroSciences product. Herculex I products contain a different protein from YieldGard Corn Borer products, which contain the Cry1Ab protein. Herculex I hybrids will compete directly with YieldGard Corn Borer hybrids for control of European and southwestern corn borers. Other pest Lepidoptera controlled by Herculex I include black cutworm, corn earworm (suppression), and fall armyworm. Herculex I and YieldGard Corn Borer are equivalent in their efficacy against European and southwestern corn borers. Herculex I provides control of black cutworms equivalent to insecticides applied at planting time.

Herculex I is fully approved in the United States for food and feed, and full approval was received in Japan in 2002. However, Herculex I currently is not approved for export to Europe. Herculex I will be available commercially in Mycogen Seeds hybrids and Pioneer hybrids for the 2003 growing season. The insect resistance management requirements for Herculex I in Illinois are identical to the requirements for YieldGard Corn Borer--minimum of 20% of acres for non-Bt corn refuge, planted within 1/2 mile of fields with Bt corn hybrids.

Mustang Max (active ingredient zeta-cypermethrin), an FMC Corporation product. Mustang, a pyrethroid insecticide, was registered for use in a number of crops in time for the 2002 season. The refined-isomer formulation, called Mustang Max, will replace Mustang. Table 4 provides an abridged list of insect pests for which Mustang Max is labeled, with recommended rates of application. Some critical use information is included in the footnotes. Please recognize that the information in this table has been transposed from the label and mistakes during this process are possible. Consequently, you should ultimately refer to the product label for application rates and other specific information about Mustang Max.

As we learn more about these and other new products for insect control, we will offer discussions and/or announcements in future issues of the Bulletin.--Kevin Steffey

Author: Kevin Steffey

The Pest Management and Crop Development Bulletin
Executive Editor: Kevin Steffey, Extension Entomologist

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