Viewing post #2555885 by Ohiogardener76

Jay5613 said:Thank you all for the very valued opinions and help. I took a cutting to the nursery and it appears to be fungal so I grabbed another fungicide. They didn't have copper and the sulfer they had was insecticidal as well so I went with one from Bonide which isn't. I cut off and pruned out quite a bit just to increase air flow through the plants. I will continue watering from the bottom like I have been. Unfortunately I cant control the rain and humidity but I'll stay on top the best I can and hope for the best.

Jay, just be careful with copper sulfate especially if using a powdered form. Everything i found on the internet said to use like 3-4 tsp per gallon. After spraying the next day my plants were almost completely burned up. If you're using some store bought mixture you'll probably be all right. Just wanted to warn you so you don't make the mistake I did. I've found I only need 1/2 tsp per gallon to keep the powdery mildew away completely. I spray about 3-4 times per year.