Armyworm

Armyworm Monitoring is underway

Armyworm Monitoring is underway

Photo and article by Luis Espino, Rice Farming Systems Advisor, Butte and Glenn Counties

The armyworm monitoring season has started. The first traps were set on April 19, and two more sites were set up on April 30. More traps will be set up in the following weeks as growers finish their ground work and get ready for planting.

Interestingly, the first set of traps caught an unusual high number of western yellowstriped armyworm moths, about 20 per night for the last 10 days. It is not clear what this will mean for rice, but we will monitor closely.

Like last year, the trap numbers will be updated on the UC Rice On-line website once more sites are established.

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Intrepid® 2F Armyworm Label Update

Intrepid® 2F Armyworm Label Update

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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