Armyworm

Intrepid® 2F Insecticide is approved to combat Armyworm

Intrepid® 2F Insecticide is approved to combat Armyworm

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

You need to make certain Intrepid® 2F Insecticide is on your rice pesticide (restricted materials) permit at the county agricultural commissioner’s office. The various pesticide database companies will receive the section 18 label to index, providing pest control advisers (PCAs) access to write recommendations.

If considering alternatives to Intrepid® 2F Insecticide, please read and follow the pesticide label directions. You can reference the table, Alternative Insecticides to Methoxyfenozide Registered for Use on California Rice, but do not use the information as a substitute for the registered label directions.

All section 18 labels are product and not active ingredient (pesticide) specific. The Intrepid® 2F Insecticide (EPA Reg. No. 62719-442) is the only methoxyfenozide product that legally can be used on rice. Use of any generic methoxyfenozide products is illegal and could harm future authorizations for usage of the insecticide for armyworm control.

More Armyworm Stories

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. 

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Updating the Armyworm Fight

Updating the Armyworm Fight

By Luis Espino, UCCE Rice Farming Systems Advisor

By this time last year, we were seeing the peak of moth flight, with about 18 true armyworm moths per night, and almost no western yellostriped armyworm moths. This year, true armyworm moths are below 10 per night, except for a couple of locations in Glenn County. If we are going to experience an increase in flight, it might come in the next two weeks. 

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2019 Armyworm Trapping

2019 Armyworm Trapping

By Luis Espino, UCCE Rice Farming Systems Advisor

Looks like the number if moths we are catching is staying low, except for a couple of locations. By this time last year, we were averaging 18 moths per night, mostly all true armyworm. This year, we are not catching more than 10 per night, and in some cases the majority are western yellowstriped armyworm. I have not heard of heavy infestations on headed rice yet.

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