Q.hibiscus tree with white substance on it
I have a hibiscus tree that has a white substance on it. What can I do?

Heather
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on March 18, 2012
This is powdery mildew. This article will help:
https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm
Was this answer useful?
00