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first followed by other leaves. The affected leaves die quickly. Rainy and humid weather favours the development of downy growth. Disease cycle It is…
buds spread through air from plant to plant. Warm temperature with enough humidity and cloudy weather are favourable conditions for the pathogen…
seed into the seedling. Conidia are produced on the infected leaves when humidity is high and wind-dispersed to neighbouring ears where they can…
Optimum temperature for Pestalotiopsis clavispora is 19-23 °C and high humidity or free water stimulates disease development. Damage symptoms…
resistant cultivars Use a wide crop rotation with non-host crops Prevent a humid microclimate. Achieve this by lowering crop density, good aeration…
spores germinate when free water is present on the plant, at high relative humidity (RH) and on wounds. Leaves can be infected directly, through…
development rate of the epidemic is fastest at 18-25 °C. High relative humidity (RH) promotes germination of spores but inhibits spore production, so…
between 25-28°C. Germination only occurs at RH above 80%. Warm (25-30°C) and humid (RH above 85%) conditions enhance infection. Fusarium sambucinum is…
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