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Posted 14 April 2010. PMN Crop News.

Revus Fungicide Receives Approval for Shorter Restricted Entry Interval

Source: Syngenta Crop Protection Press Release.

Greensboro, North Carolina (March 31, 2010)--Syngenta Crop Protection announced today that the Environmental Protection Agency (EPA) has approved a shorter Restricted Entry Interval (REI) for Revus® fungicide. Revus, which previously required an REI of 12 hours, now has an REI of four hours, offering greater flexibility and ease of use.


Revus, which was introduced in February 2008, contains the active ingredient mandipropamid, the first mandelamide fungicide on the market, and targets oomycete fungi, including the pathogens that cause Phytophthora blight, late blight and downy mildews. Revus is labeled for use on grapes and vegetables, including bulb, fruiting, leafy and brassica vegetables, as well as cucurbits.

“Revus provides outstanding performance on some of the most challenging pathogens in vegetables and grapes and the reduced 4-hour REI now offers growers even more convenience,” said David Laird, Syngenta fungicide brand manager. “Revus also provides excellent rainfastness and efficacy.”

Revus exhibits LOK + FLO™ technology, preventing spore germination and producing a barrier to prohibit further infection. Upon application, mandipropamid locks tightly to the waxy cuticle of treated leaves, quickly becoming rainfast and establishing a protective barrier to prevent fungi from taking hold. Meanwhile, a steady supply of the fungicide enters the leaf, flowing through the inner tissue by translaminar activity to protect both sides of the leaf with a long-lasting reservoir of the active ingredient. The rainfastness and photostability of Revus deliver excellent residual activity.

A mandelamide fungicide, Revus is a member of the carboxylic acid amide (CAA) class of chemistry, part of the Fungicide Resistance Action Committee’s Group 40. Members of the CAA class exhibit no cross-resistance to other classes of fungi, establishing Revus as an outstanding tool on its own in addition to being an integral part of an Integrated Resistance Management (IRM) program. And as a powerful, reduced-risk pesticide1, Revus is also an excellent Integrated Pest Management (IPM) tool. Product used with the shorter REI must carry a label designating a four-hour REI.

Note: 1A reduced-risk pesticide use is defined as one which “may reasonably be expected to accomplish one or more of the following:” (1) reduces pesticide risks to human health; (2) reduces pesticide risks to non-target organisms; (3) reduces the potential for contamination of valued, environmental resources, or (4) broadens adoption of IPM or makes it more effective. Revus satisfies all four of these criteria.

Mary DeMers