Nimitz Nematicide Receives EPA Approval
September 12, 2014 
Nimitz, a non-fumigant nematicide from Adama with simplified application features, has received federal registration from EPA. The active ingredient in Nimitz has a unique mode of action which categorizes the product within a new chemical classification.
The U.S. is the first country to receive a registration, with approved crop use on cucurbits, (including cucumbers, watermelons, cantaloupe and squash), and fruiting vegetables (tomatoes, peppers, okra and eggplants).
“Nimitz is the nematicide that growers have been waiting for,” says Herb Young, Adama brand leader. “It is highly effective in controlling plant-parasitic nematodes. It also has a ‘Caution’ signal word which has never existed until now for a chemical nematicide. No other nematicide in the U.S. currently has this same mode of action or classification.”
Adama’s latest entry is a new paradigm for nematode control on high value crops. Nimitz eliminates stringent use requirements of fumigant nematicides including Fumigant Management Plans, re-entry intervals (REI), 24-hour field monitoring and restrictive buffer zones.
“In contrast to fumigant nematicides, Nimitz simplifies nematode management by lessening complex handling practices and application restrictions,” says Young. “Nimitz has no REI and does not require certified applicator training. Also, personal protective equipment (PPE) is minimal.”
Nematode Control
Nematodes are among the most destructive and problematic pests for growers worldwide, causing yield loss of more than $100 billion annually. In the U.S., restricted use pesticides, primarily fumigants, have been a traditional means for controlling nematodes.
Since 2007, more than 1,000 field trials and hundreds of regulatory studies have been conducted in 23 countries to demonstrate the effectiveness and unique handling benefits of Nimitz. This research consistently shows nematode control with Nimitz as being competitive with the most popular commercial standards.
“As the first new chemical nematicide to be developed in more than 20 years, Nimitz will fill an industry-wide demand for highly-effective nematode control as companies phase out older, more toxic, and environmentally-hazardous nematicides,” says Pablo A. Navia, Adama innovation technical leader. “NIMITZprovides a non-restricted use pesticide alternative that is effective, easy to apply, and with lower environmental impact.”
Cited by Navia as a ‘true’ nematicide, NIMITZ causes irreversible and rapid nematicidal activity immediately following an application. Within one hour of contact, nematodes cease feeding and quickly become paralyzed. Within 24 to 48 hours, pest mortality occurs rather than temporary nematostatic (immobilizing) activity, as seen with organophosphate and carbamate nematicides.
Product Application, Future Registrations
Since Nimitz is a contact nematicide, not a fumigant, it frees growers from equipment requirements, liabilities, and dangers associated with fumigant nematicides without compromising control.
Nimitz application options include drip-injection, and broadcast or banding with mechanical incorporation.
Adama reports that the process for Maximum Residue Levels has been initiated for the export of produce. The company expects to obtain further registrations of Nimitz in more countries and crops.
According to Young, the product’s unique and safer features exemplify Adama’s commitment to bringing simplicity to agriculture. He explains, “EPA summarized this new active best in the Federal Docket [EPA-HQ-OPP-2012-0629, July 25, 2014]: ‘Fluensulfone (Nimitz) represents a safer alternative for nematode control with a new mode of action and a much simpler and straight forward product label.’”
For more information about Nimitz, go to Adama.com.
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