Armyworm Activity on the rise

Armyworm Activity on the rise

The latest trapping data shows rising Armyworm detections in the Sacramento Valley.

Here’s an update from UCCE Rice Farming Systems Advisor Luis Espino:

“As we move into June, we are seeing the number of moths increase. Higher numbers seem to be found in fields that were planted earlier. As numbers increase, we will start finding worms in the field. We will be monitoring fields in the next few days to see if we can detect small worms. 

Chart: Average Moth captures in Sacramento Valley, 4/1-5/31/2020

This year, Intrepid is available to control armyworms. Trials we have conducted in the last two years have shown that Intrepid provides very good 3 to 5 days after the application. Dimilin is another option that provides good control, with the caveat that its PHI is 80 days. Pyrethroids have not resulted in good control, even when applied very early trying to target small worms.

To see the numbers per trap, click on the link below for the Armyworm Monitoring Website.”

More information:

More Armyworm Stories

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.