Posted by Helen Moore on December 09, 2002 at 08:04:12:
In Reply to: Re: Gardenia Bush - sickly looking - sooty mold posted by Maren Purves on September 18, 2002 at 12:11:55:
The black is from white flies waste. Buy some volick oil and mix according to directions and spray the bushes before they start putting out blooms. Be sure to spray underneath the leaves as best you can because that is where the flies hang out. I have around twelve-fourteen bushes and this is how I treat them.