Houseplants are susceptible to attack by various pests and diseases. While rarely lethal, pest and disease outbreaks can compromise the aesthetic quality of indoor vegetation. Even tightly sealed houses and conscientious tending cannot always prevent attacks on our houseplants.
Homeowners are reporting green or brown clusters hanging from the trees that look like a cocklebur. These clusters are caused by an eriophyid mite, and the damage is commonly called the ash staminate flower gall.
Spruces are a favorite evergreen for yards and windbreaks in Iowa. However, they are susceptible to a few problems that can leave them unsightly. Knowing about these common spruce ailments is the first step toward minimizing problems with these beautiful trees.