Marrone Organic Innovations Inc. of Davis, Calif., named Monterey AgResources of Fresno, Calif., distributor of its new organic herbicide, GreenMatch, in the western United States.

The broad-spectrum post-emergence herbicide contains d-limonene, a citrus extract, as well as other plant extracts and surfactants.

GreenMatch kills plants by stripping the wax off the leaves, causing them to shrivel rapidly and die.

The herbicide, which is registered for use on noncrop areas in the West except for California, meets National Organic Program requirements. Marrone officials say they expect Environmental Protection Agency registration for product use on ground where crops are present, except in California, this summer.

Marrone Organic Innovations licensed the product from Cutting Edge Formulations of Atlanta for sales in the western United States, Latin America and Canada.