Apples, Podosphaera leucotricha, Western Australia
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Powdery mildew of apples is found in orchard districts throughout the South-West.
recent years a rapid build-up of the disease has occurred in some plantings as a result of changes in orchard practice.
Satisfactory control can be achieved by pruning out infected shoots and spraying with Karathane or Morocide
Doepel, R F. and Hardisty, S. E.
"Powdery mildew of apples : results of recent spray trials,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 4:
5, Article 5.
Available at: https://library.dpird.wa.gov.au/journal_agriculture4/vol4/iss5/5