View Messages

Return to Other Topics

Holly Bushes

[Post a Follow Up] [Post to this category]
From: Ron Yelverton City: Highland, IL
Good day. We have several holly bushes that are showing black on the leaves. We have one plant that all the leaves have turned brown and look dead. From my research I think we have tar spot, but I could not figure out a treatment besides removing the diseased leaves. Is there a fungicide that we could use? Thank you for your time.
	Extension Message From: Richard Hentschel Extension Educator, Horticulture DuPage/Kane/Kendall Unit hentsche@illinois.edu
Holly leaf diseases are often more severe following a wet prolonged spring. A fungicide treatment in the early spring during bud break and while you have new green shoots can provide some protection. Proper pH, pruning to promote good light and air penetration are also helpful. repeated damage can impact plant health. water during dry periods at the soil line, mulching will keep the soil cooler and more moist.
[Post a Follow Up] [Post to this category]