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apple powdery mildew (Podosphaera leucotricha (E. et E.) Salm.); farinaceous dew of apple (Podosphaera leucotricha (Ell. et Ev.) Salmon); apple mildew (Podosphaera leucotricha (Ell. et Ev.) Salmon); powdery mildew of apple (Podosphaera leucotricha (E. et E.) Salm.) | |||
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apple powdery mildew; powdery mildew of pear |