Physan 20 is a fungicide, bactericide, and algaecide which kills powdery mildew, rust, other fungi, and even fire blight on contact. Physan 20 is a contact killer and is safe and easy to use. It biodegrades within 50 hours, and leaves no residual in the soil or on your plants. It is near neutral so it will not affect your soil pH.
Physan 20 is EPA approved for use on ornamentals and hard surfaces. It is also labeled for disinfecting all tools and equipment used in and around the farm, orchard, packing shed and greenhouse.
Physan 20 kills the following pathogens:
Algae build-up, anthracnose, black spot, black fungus, bacterial leaf spot, botrytis crown rot, botrytis gray mold, botrytis leaf spot, brown canker, brown patch, bud rot, canker rot, crown gall, crown rot, damping off, dollar spot, downy mildew, erwinia rot, fading rot, fairy rings, fire blight, fusarium basal rot, fusarium blight, gray mold diseases, heart rot, leaf black spot, leaf blight, leaf spot, mildew, penicillium leaf base rot, phyllosticta blight, powdery mildew, pythium blight, root rot, rust, shoot rot, slimy collar, stem gall, stem rot, toad stools, and wilt.