Posted by MEADOW VIEW on August 07, 19100 at 13:50:05:
In Reply to: Wave Petunia leaves turning brown posted by Renee on August 06, 19100 at 22:01:56:
: I have 2 window boxes of wave petunias and the leaves underneath are turning brown. Some of the leaves on top look like they have a powder on them and they are wilting. Any ideas on what it is and what I can do to save them?
RENEE: The brown leaves underneath is probably normal as they are not getting much light and with high humidity and the lack of light they will brown out. The powder like substance on the leaves could be powdery mildew, it has been very bad this year. Spray them with a chemical for powdery mildew. MVG Plant Dr.