Powdery mildew is a gray mold usually growing on top of leaves. This link will take you to several articles on growing peas; http://www.google.com/cse?cx=012078378210706707791%3Af1h5n_k1r5e&ie=UTF-8&q=boxwoods&oq=&gs_l=#gsc.tab=0&gsc.q=snow%20pea%20peoblems
Answered on October 31, 2013
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