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New Insecticide Products for the 2002 Growing Season

December 7, 2001
Some recent registrations of insecticide products occurred after we had assembled our recommendations for insect management for 2002 (in the Illinois Agricultural Pest Management Handbook). So, we want to inform you about these products for your consideration as you make plans for insect control next year.

Aztec 4.67G (marketed by Amvac). This is another, more concentrated formulation of the familiar corn soil insecticide Aztec, which is also sold as a 2.1G formulation. Aztec 4.67G must be applied with the SmartBox system. It is labeled for control of corn rootworm larvae, cutworms, seedcorn maggot, white grubs, and wireworms. The rate of application for control of all of these pests is 3.0 ounces per 1,000 feet of row. Aztec 4.67G can be applied either in a band (including T-band) or in furrow, depending upon the insect to be controlled.

Fortress 2.5G (marketed by Amvac). This is another, less concentrated formulation of the familiar corn soil insecticide Fortress, which is also sold as a 5G formulation. Fortress 5G must be applied with the SmartBox system. However, Fortress 2.5G will be sold in bags and can be used in insecticide hoppers on conventional planters. It is labeled for control of corn rootworm larvae, cutworms, seedcorn maggot, white grubs, and wireworms. Refer to the most current label for rates of application and placement of Fortress 2.5G for control of corn soil insects.

Mustang (manufactured and marketed by FMC). Mustang is a new pyrethroid insecticide that recently was registered for control of insects in alfalfa and corn, as well as several vegetables, cotton, pecans, rice, and sugar beets. Alfalfa insects listed on the Mustang label (and the corresponding rates of application) include alfalfa caterpillar, alfalfa weevil, cutworms, meadow spittlebug, potato leafhopper, and webworms (2.4 to 4.3 ounces per acre), and grasshoppers and plant bugs (3.0 to 4.3 ounces per acre). Corn insects listed on the Mustang label (and the corresponding rates of application) include cutworms (1.4 to 3.0 ounces per acre); corn rootworm beetles, European corn borer, flea beetles, grasshoppers, hop vine borer, Japanese beetle adults, sap beetles, southern corn leaf beetle, southwestern corn borer, stalk borer, stink bugs, webworms (2.9 to 4.3 ounces per acre); armyworm and fall armyworm (3.4 to 4.3 ounces per acre); and corn earworm (1.9 to 4.3 ounces per acre). Mustang also can be applied at planting time (in furrow or in a band) for control of cutworms. The rate of application is 0.18 fluid ounce per 1,000 feet of row. We have had very little to no experience with Mustang for control of many of the insects listed on the label. Limited amounts of data suggest that the level of control provided by Mustang is equivalent to the level of control provided by Capture, another FMC pyrethroid insecticide, for insect pests of corn. Mustang has provided good control of both alfalfa weevils and potato leafhoppers in alfalfa in efficacy trials in the Midwest.

For further information, contact representatives from the companies who market these insecticides. As efficacy data become available, we will publish some of the results 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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