Armyworm

Armyworm • July 12, 2023July 12, 2023

Armyworm Moth Numbers Increasing

According to the University of California Cooperative Extension (UCCE) latest Armyworm Monitoring Update, moth numbers continue to increase in most locations throughout the Sacramento Valley.

Armyworm • July 10, 2023July 10, 2023

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.

Armyworm • May 22, 2023May 22, 2023

Armyworm Monitoring: 2023 Season Starts

The University of California Cooperative Extension (UCCE) has started the first checks of the season for armyworms throughout the Sacramento Valley.

According to the UCCE, traps will be set up at all 15 monitoring sites that have been used in prior years. Below is a map of those locations-

Armyworm • March 21, 2023March 21, 2023

Intrepid® 2F is registered!

The Department of Pesticide Regulation finalized the Intrepid® 2F registration earlier this month. The label must include ‘rice’ and ‘armyworm’ for legal usage, or you must have an approved supplemental label (from Corteva) in your possession. Usage was previously available as a Section 18 Emergency Exemption dating back to 2015. As in years past, Corteva will have product available for the use season. Please remember the registration is by the trade name Intrepid® 2F and not per active ingredient.

Armyworm • July 1, 2022July 1, 2022

Highest Armyworm Numbers Expected Soon and Inspection Tips

The University of California Cooperative Extension (UCCE) says the next several days will be critical for growers to monitor their fields, and potentially make any necessary treatment decisions, as armyworm numbers will be at their highest very soon.

As expected, moth numbers peaked last week. Utilizing annual trend data and on-site monitoring, the UCCE says worms in the field will peak this week and next.

Armyworm • June 17, 2022June 17, 2022

Armyworm Peak Tracking as Expected

The University of California Cooperative Extension (UCCE) expects peak moth numbers by the end of June, with armyworm numbers peaking two weeks later.

Armyworm • June 13, 2022June 13, 2022

Intrepid® 2F Section 18 Approved for Armyworm Control

The Intrepid® 2F Insecticide (EPA Reg. No. 62719-442) Section 18 has been issued for use in Butte, Colusa, Glenn, Merced, Placer, Sacramento, San Joaquin, Sutter, Yolo, and Yuba Counties.