Powdery mildew caused by Microsphaera alphitoides Griff. et Maubl. is a major threat affecting the survival and growth of oak regeneration. An experiment was performed in a Quercus robur L. naturally regenerated forest in northwestern Italy in order to assess the effectiveness of sulphur and potassium dihydrogen phosphate against powdery mildew. Both treatments reduced significantly disease severity on seedlings compared to controls (p < 0.05). The best result was obtained with sulphur. An additional experiment was conducted by using potassium phosphite. Results suggest that these treatments may be suitable to control powdery mildew in natural forests.
Effectiveness of environmental friendly control strategies against powdery mildews on oak seedlings in natural forests
LIONE, GUGLIELMO GIANNI;NICOLOTTI, Giovanni;GONTHIER, Paolo
2012-01-01
Abstract
Powdery mildew caused by Microsphaera alphitoides Griff. et Maubl. is a major threat affecting the survival and growth of oak regeneration. An experiment was performed in a Quercus robur L. naturally regenerated forest in northwestern Italy in order to assess the effectiveness of sulphur and potassium dihydrogen phosphate against powdery mildew. Both treatments reduced significantly disease severity on seedlings compared to controls (p < 0.05). The best result was obtained with sulphur. An additional experiment was conducted by using potassium phosphite. Results suggest that these treatments may be suitable to control powdery mildew in natural forests.
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