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Canada approves FMC’s herbicide pethoxamid
Feb. 6, 2020
FMC Corporation
United StatesFollow
United StatesHealth Canada’s Pest Management Regulatory Agency (PMRA), under the authority of the Pest Control Products Act, is granting registration for the sale and use of FMC’s Pethoxamid Technical and Pethoxamid 480EC, containing the technical grade active ingredient pethoxamid, for pre-emergent control or suppression of grass and broadleaf weeds in field corn and soybeans, using ground application equipment only.
This decision is consistent with the Proposed Registration Decision PRD2019-12, Pethoxamid and Pethoxamid 480EC, which contains a detailed evaluation of the information submitted in support of this registration. The evaluation found that, under the approved conditions of use, the health and environmental risks and the value of the pest control products are acceptable. Health Canada received no comments on PRD2019-12, Pethoxamid and Pethoxamid 480EC.
Pethoxamid enters plants through the growing tips of roots and shoots, where it inhibits growth of susceptible plants soon after germination. It is primarily effective against annual grasses, but also provides control of certain broadleaf weeds. Pethoxamid only controls weeds that have not yet emerged. It is classified as a Group 15 herbicide by the Weed Science Society of America and as a Group K3 by the Herbicide Resistance Action Committee.
Pethoxamid 480EC, which is formulated with pethoxamid, provides pre-emergent control or suppression of several common weed species, including foxtail, crabgrass, ragweed, pigweed, nightshade, and lamb’s-quarters.
The herbicide reduces early season weed competition to the emerging crop. Management of weeds at this time is critical as corn and soybean do not compete well with weeds until crop canopy closure. As Pethoxamid 480EC has residual activity on certain weed species, reduction in competition with the crop is extended.
Source: Health Canada
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