Green Clover Worm Moths

The last few days we have been seeing lots of green clover worm moths. They are dark gray in our area, but other colors are out there too.  Thanks to Stephanie Porter and Kelly Estes for helping with identification.  The one below is not pretty because I smashed him a bit to take the pic.  Purdue University gives advice on scouting and economic thresholds.  I our area, it may be worth a look in your fields judging from the number of moths I am seeing.  As with many insects, the worms are the problem.  The moths just show potential.  Kelly Estes shared an article from 1998 that says in general they are more of a nuisance than problem.