Goehring Okays Aerial Application Of Herbicide To Protect Corn

North Dakota Agriculture Commissioner Doug Goehring has issued a special local needs (SLN) registration to Bayer CropScience, allowing aerial application of Laudis herbicide to control kochia, ALS-resistant kochia and glyphosate-resistant weed species in cornfields.

“North Dakota has had above-normal rainfall this spring, and in recent years has seen high levels of precipitation,” Goehring said. “These wet conditions make it difficult or impossible for ground pesticide application equipment to be used in some fields, forcing growers to rely on aerial application of pesticides.”

Goehring said Laudis is federally registered for use on corn, but only for ground application.

Kochia (Kochia scoparia) is one of the most serious weeds problems for North Dakota producers. It is highly adaptable and prolific. If uncontrolled, kochia can significantly impact yield of corn and other crops. Much of the kochia in the state has been shown to be resistant to other herbicides.

The SLN labeling allows aerial application of Laudis at a rate of three fluid ounces per acre, the same rate allowed by the federal label for ground application. Only one application can made to sweet corn. Two applications may be made to field corn or popcorn, although no more than six fluid ounces may be applied per acre per season, and applications must be made at least seven days apart. The labeling prohibits grazing of livestock or harvesting corn forage in treated fields within 45 days of application.

Applicators must follow directions, restrictions, worker protection standard requirements and precautions on the full product label and the SLN labeling. They must also have the SLN labeling in their possession during application.

“The labeling prohibits direct application to water,” Goehring said. “This SLN is intended to allow Laudis to be applied to fields that are too soft for ground rigs. It cannot be applied to standing water.”

Goehring encouraged users to contact their dealer to obtain the SLN labeling.

Section 24(c) of the Federal Insecticide, Fungicide and Rodenticide Act gives states the authority to register additional uses for federally registered pesticide products, or new products to meet special local needs. EPA reviews these registrations.

The SLN registration expires December 31, 2017.

North Dakota ranks eighth in the U.S. in production of grain corn.

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