Monday, May 18, 2015

Fall Armyworm Flight 10X Normal

Fall armyworm trap captures for the last two weeks are averaging around 10 times normal for this time of year.

Click for a larger version.

Normal captures would be in the range of 40 - 50 but we are now seeing weekly captures over 400, and this has been sustained for two weeks. I am not sure what this means in practical terms, but the moths are laying eggs somewhere. Potential early season crop hosts include alfalfa, wheat, grapes, strawberries and some vegetables. Other hosts include several of our weed species.

The abundant rainfall has meant no shortage of early season hosts for these insects and it is looking like it might be a "wormy" year in our row crops.