Powdery mildew of apples

Authors

Department of Agriculture, Western Australia

Keywords

Apples, Podosphaera leucotricha

First Page Number

212

ISSN

0021-8618

Abstract

Powdery mildew (Podosphaera leucotricha) markedly affects the growth and vigour of susceptible apple varieties, particularly Jonathan and Cleopatra.

The fungus survives the winter as mycelial threads in dormant buds on spurs and laterals infected the previous season. At bud-burst the mycelium grows onto the developing leaves and blossom clusters to form white patches.

Spores produced on these patches are spread by the wind onto the healthy growth.

Recommended Citation

Department of Agriculture, Western Australia (1971) "Powdery mildew of apples," Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 12: No. 6, Article 32.
Available at: https://library.dpird.wa.gov.au/journal_agriculture4/vol12/iss6/32