red twig dogwood attacked

Asked August 2, 2016, 8:12 PM EDT

Hello. Looking for some help in identifying what is attacking our red twig dogwoods and what do do about it. They were planted in the spring (bought at the Wissahickon Valley Watershed plant sale) and have been doing well until very recently. I have attached photos. Thank you, Bruce Morris

Montgomery County Pennsylvania

1 Response

This might be dogwood anthracnose, which is a fungal disease. On redtwig dogwood, you get the purple spots and rarely any twig dieback. There is nothing to do for it now. Fungicide treatments have to go on in the spring when the leaves are coming out. It may not need treated any year. Assess what it looks like as summer ends, and if you can live with the level of spotting, you don't need to treat next spring.