Black leaves on arborvitae.

Asked June 29, 2020, 9:00 PM EDT

We planted 22 arborvitae to block a neighbor, about one month ago. They seem to be doing great, although my husband used Miricale Grow thru a sprayer and now five of the trees have black leaves. Is this fixable or will these trees die?

Saratoga County New York

1 Response

Thank you for your question. Without photos and some information about how these were planted or their subsequent care, we can’t diagnose what is wrong, whether there is a cure, or their fate. Perhaps your county Extension service is able, with more data, to identify the problem(s);and help with a solution. Here is their webpage: Good luck!