Question
I've had a Semperflorens begonia for many years that has been continuously beautiful and free of pests. This year it has become infected with mildew. What's the best, least toxic remedy?
Debra
San Francisco
Answer
Begonias get mildew when the humidity increases and we have cool nights followed by warm days. The easiest and safest way to get rid of the mildew is to spray with Serenade. This is a non toxic (except to funguses) spray certified by OMNI. It is safe to use on Begonias and will not burn leaves.
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