Incidence and Severity Relationships of Secondary Infections of Powdery Mildew on Apple

Abstract

SEEM, R. C., and J. D. GILPATRICK. 1980. Incidence and severity relationships of secondary infections of powdery mildew on apple. Phytopathology 70:851-854. Severity (amount of leaf tissue affected by disease) can be determined relationship remained constant for data from different locations or from incidence (proportion of leaves diseased) for secondary… (More)

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