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.
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The University of California Cooperative Extension (UCCE) expects peak moth numbers by the end of June, with armyworm numbers peaking two weeks later.
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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.
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The University of California Cooperative Extension (UCCE) has released a map and informational trend graph showing weekly moth trap numbers.
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The University of California Cooperative Extension (UCCE) says the start to the armyworm monitoring season has revealed higher than normal numbers.
The UCCE says all 12 trap locations across the Sacramento Valley had higher moth catches compared to this time last year.
The table below shows trap locations, armyworm moth catches reported for the week of May 16 and yearly averages.
You can sign up for weekly armyworm updates by clicking here.
The University of California Cooperative Extension (UCCE) is actively setting up traps across the Sacramento Valley to monitor armyworms.
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This year’s armyworm monitoring has wrapped up, and the news is good. Here’s an update from Rice Farming Systems Advisor Luis Espino:
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As we enter summer, armyworm monitoring and trapping efforts will intensify.
Moth numbers are starting to increase along the northern part of the valley, according to UC Rice Farming Systems Advisor and Butte County Director, Luis Espino.
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The Intrepid® 2F Section 18 is approved for use again in 2021. Section 18 labels are available through the county agricultural commissioner offices when you add Intrepid® 2F to your pesticide permit.
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Here’s the latest information on the armyworm work in the Sacramento Valley, from UCCE Rice Farming Systems Advisor Luis Espino:
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