walnut blight

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Noun1.walnut blight - a disease of English walnut trees
blight - any plant disease resulting in withering without rotting
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Regalia, an effective new tool for control of several fungal and bacterial diseases in agronomic and ornamental crops, including powdery mildew, downy mildew, Botrytis gray mold, bacterial leaf spot, brown rot, walnut blight, late blight, citrus canker and others.
Serenade is based on AgraQuest's patented strain of Bacillus subtilis, a microorganism that is effective against several crop-damaging pathogens, including powdery mildew, walnut blight, Botrytis bunch rot and fire blight.
Others include walnut blight, aphids, scale, and leaf-chewing caterpillars.