Armyworm

Weedy Rice Survey and Updated Armyworm Information

Weedy Rice Survey and Updated Armyworm Information

The UCCE Rice Team will soon carry out a survey of weedy rice across our growing region.
Fields with a recent history of weed rice infestations will be surveyed. Here’s a link to more information on this effort.

Meanwhile, here’s the latest on the Armyworm front:

Moth captures have come down. Worms are finishing their cycle. Most areas saw worm infestations that did not require a treatment. Pupae can be found lodged among rice tillers in areas with thick stands. Some pupae may fall into the water and drown, but some will survive and turn into moths.
The next stage to monitor for armyworms is heading. Armyworms can feed on branches of the developing panicle and cause blanking. We may see another peak of moth activity in a few days. During the peak would be the best time to check for worms again.For pictures of armyworm stages and panicle injury, visit the armyworm monitoring website.

More Armyworm Stories

Armyworm Numbers trending lower

Armyworm Numbers trending lower

Here’s the latest on Armyworm trapping from UCCE Rice Farm Advisor Luis Espino: 

Except for one field, all traps are showing very low numbers. There are still a few worms out there, but I have not seen any fields with high numbers. In some of the fields that are headed I started to notice armyworm panicle injury, but at very low levels. As fields go into heading, and moth populations start increasing, risk of panicle injury will also increase.

READ MORE