A neighbor had a tree taken down and the contractor told her my 2 large hemlock trees have a disease that is affecting Indiana County. He showed her a white colored fungus-looking growth on a branch. Is this a common problem in the area and are there steps I can take short of paying his rather high fee to treat the trees?
Indiana County Pennsylvania
It sounds like the Hemlock has a common insect problem, the Hemlock wooly adelgid. You can find more information on this insect at http://ento.psu.edu/extension/factsheets/hemlock-woolly-adelgid. There are home and garden products available to protect trees and shrubs that include activity against adelgids. These products are sprinkled on the ground around the trees and should then be watered into the soil. Check with your local gardening supply stores to see what they have available.