Agra Quest Serenade Garden Disease Control Concentrate, 32 Ounce Concentrate Effective ORGANIC FUNGICIDE for use on flowers, fruits, vegetables, herbs, medicinal and ornamental plants Controls black spot, powdery mildew, rust, gray mold, late blight, scab and MORE Can be applied up to and INCLUDING THE DAY OF HARVEST APPLY ANY TIME of day  will not burn or injure plants or lawn. No temperature restrictions for application. For ORGANIC gardening  OMRI listed