Cottonwood Borer

The dreaded cottonwood borer! They attack soft bark trees like willows and cottonwoods. There are treatments available at certain times of the year, but the best way to avoid a problem with these critters is to keep your trees healthy with good soil and regular watering.

Evidence of the cottonwood borer on a willow tree looks like this. Once customer described it as "red barnacles". It is actually a type of frass. If you see this, you have a borer infestation!