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ANALYSIS ON OCCURRENCE OF MAIN DISEASES OF MELON IN JIASHI

Yang Du Li Guangkuo Ma Junyi (The Institute of Plant Protection ,Xinjiang Academy of AgriculturalSciences,Urumqi ,830000)  
Epidemic factors of downy mildew and powdery mildew in melon were studied in JIASHI during 1996~1999.It was confirmed that the greenhouses in which downy mildew occured in cucumber was primary cource of downy mildew of melon.The key factors influencing epidemic of downy mildew of melon in JIASHI were rainy days and rainfall from June first to August tenth.Melon culticars in JIASHI were susceptible.Fruitmaturtion period of melon to downy mildew and powdery mildew was the best susceptible.Fruit-formation period was alse susceptible.(Abstract)
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