Armyworm

Armyworm •

Armyworm Update Sept. 3

Armyworm Update Sept. 3

By Luis Espino, UCCE Rice Farming Systems Advisor

In all locations the number of moths trapped is coming down for the past two weeks of more. I have not been able to check fields for worms recently; I’m sure there are still a few worms out there. However, most of the rice is now past the point when panicles are at risk of significant injury. 

I have seen fields where armyworms caused injury (see pic below), but for the most part it has been small areas or not enough injury to justify an application. In some of the fields with more injury, I was asked what kind of yield reduction to expect.

Read more and see pics and graphs here: http://rice.ucanr.edu/Armyworm_traps/

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Armyworm •

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You must have the Intrepid® 2F supplemental label in hand as if it were on the container. Intrepid® 2F is the only product with the active ingredient methoxyfenozide registered for use to control armyworm on rice. The registration was complete earlier this year, which left the registrant (Corteva Agriscience) no time to include rice on the label. Corteva Agriscience has made the supplemental label available on the CDMS and Agrian websites. For permitting and label questions, please contact your local agricultural commissioner’s office. 

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