Dow AgroSciences, Indianapolis, IN, announces that the EPA has authorized Section 18 emergency exemptions for the active ingredients myclobutanil and propiconazole to be used in several states. Iowa, Minnesota, South Dakota, Maryland, Illinois, North Dakota, Kentucky and New York have been given permission to use the two chemicals in the presence of soybean rust.

Use of myclobutanil, marketed under the brand names Laredo and Laredo EW fungicides, and propiconazole, marketed under the brand name Propimax EC fungicide, will not be allowed until the presence of soybean rust has been confirmed in the continental U.S. by the Animal and Plant Health Inspection Service of the USDA.

For more information, visit www.dowagro.com.

Dow AgroSciences, Indianapolis, IN, and Pioneer Hi-Bred International, Johnston, IA, announce that the product names for the next generation of traits in the Herculex Insect Protection family will be Herculex RW and Herculex XTRA. Herculex RW is formulated to give farmers built-in protection against corn rootworm. Herculex XTRA will combine the Herculex I broad-spectrum protection against corn borer, black cutworm, and western bean cutworm with the corn rootworm protection of Herculex RW.

For more information, visit www.dowagro.com.

Monsanto Company and the University of Missouri, Columbia, MO, are investigating a potential case of glyphosate-resistant common ragweed on a single field in central Missouri. Preliminary findings of field and greenhouse trials indicate lack of control; however, Monsanto states that factors such as inheritability, insect interactions, and the unique morphology of this population all raise additional questions that merit further research.

Monsanto stresses that it is critical for growers to use the right rate of glyphosate for the right size weed at the right time, as well as any additional weed control tools that may be necessary.

For more information, visit www.monsanto.com.

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