Colusa County
University of California
Colusa County

Posts Tagged: armyworms

Armyworms 2018: Get Ready

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This year, with the help of Dow AgroSciences, I will increase the number of armyworm traps that I have been monitoring. The idea is to give growers and PCAs more localized information so that they can have a better idea of what's going on near them, and...

Posted on Friday, April 6, 2018 at 8:51 AM
Tags: agric (1), armyworms (16), arthropods (16)

Armyworm vs high temperature blanking

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I was evaluating armyworm injury in plots and noticed there was quite a bit of panicle blanking not caused by armyworms. When armyworms injury panicles, they feed on the rachis of panicle branches, causing those branches to dry out....

Posted on Friday, August 25, 2017 at 8:41 AM
Tags: armyworms (16), arthropods (16), development (1)

Armyworms Are Back

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I have received reports of significant defoliation due to armyworms from several areas: Glenn, Colusa, Butte and Yolo counties. In most areas the defoliation is severe but the area affected within fields still small. I inspected a field in...

Posted on Wednesday, June 21, 2017 at 9:06 PM
Tags: armyworms (16), arthropods (16)

Armyworm 2017 update


Number of moths trapped per day is increasing. Numbers are higher in areas where crop diversity is higher. I haven't seen any worms yet, but they are expected by the end of the month. At this point, moths may be mating and laying eggs on weeds and...

Posted on Wednesday, June 7, 2017 at 11:35 AM
Tags: armyworms (16), arthropods (16)

Armyworm Trapping 2017

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I have set up seven armyworm pheromone traps in the Sacramento Valley, and Michele Leinfelder-Miles is monitoring one trap in the Delta. Last year the traps showed a distinctive peak mid August, when worms started causing problems during heading. This...

Posted on Friday, May 26, 2017 at 3:05 PM
Tags: armyworms (16), arthropods (16)

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