Forsythia Bush Has Severe Fungal Infection With Galls

Question From: R. Martin - MICHIGAN
Q: My forsythia bush has developed a severe fungal infection with galls. Should I trim the entire plant down to about a foot now in August or wait until another season?
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A: Branches infected with the fungal disease should be removed. Be sure to sterilize the pruners after every cut. Best And Happy Yardening, Nancy.