This is what I use up to two weeks before harvest..It works well
SERENADE Garden and Lawn Disease Control is a broad spectrum, preventative biofungicide recommended for the control or suppression of many important plant diseases (see section below). It may be used on vegetables, fruits and nuts including tomatoes, peppers, melons, carrots, broccoli, lettuce, onions, apples, pears and walnuts in addition to annual and perennial bedding plants and flowers, roses, potted flowers, foliage plants, trees and shrubs located in residential greenhouses and residential and commercial landscapes and interiorscapes. SERENADE Garden and Lawn Disease Control can be applied up to and including the day of harvest.
Diseases Controlled
Following is a list of vegetable, fruit, nut and ornamental diseases controlled or suppressed by SERENADE Garden and Lawn Disease Control:
Anthracnose (Colletotrichum spp.)
Bacteria (Erwinia, Pseudomonas, Xanthomonas spp.)
Bacterial Leaf Blight (Xanthomonas campestris)
Bacterial Speck (Pseudomonas syringae pv. Tomato)
Bacterial Spot (Xanthomonas spp.) - suppression
Black Mold (Alternaria alternata)
Black Root Rot / Black Crown Rot (Alternaria spp.)
Black Spot of Rose (Diplocarpon rosea)
Botrytis (Botrytis spp.)
Downy Mildew (Bremia lactucae, Personospora spp.) and (Plasmopara viticola - suppression)
Early Blight (Alternaria solani)
Fire Blight (Erwinia amylovora) - suppression
Gray Mold (Botrytis cinerea)
Late Blight (Phtytophthora infestans)
Leaf Spots and Rusts - (Alternaria, Cercospora, Entomosporium, Helminthsporium, Myrothecium, Septoria, Puccinia, and Phragmidium spp.)
Pin Rot (Alternaria / Xanthomonas complex) - suppression
Powdery Mildew (Uncinula necator, Erysiphe spp., Sphaerotheca spp., Oidiopsis taurica, Leveillula taurica, Podosphaera leucotricha)
Scab (Venturia spp.) - suppression
Walnut Blight (Xanthomonas campestris)