General Hydroponics® Defguard™ Biofungicide/Bactericide is an OMRI-listed biofungicide and bactericide for use in organic gardening that's effective against a variety of pathogens, particularly botrytis (which causes botrytis blight, or gray mold) and powdery mildew. It also controls anthracnose; bacterial leaf blights, spots and specks; black mold; black spot (on roses); brown spot; fruit rot; and leaf spots. If you need a biofungicide/bactericide that prevents bacterial and fungal diseases from even establishing themselves on leaves, look no further than General Hydroponics® Defguard™ Biofungicide/Bactericide.
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