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油菜是四川省的主要油料作物,主产地区占小春作物总面积的20—30%。目前在不同地区,由于各种病害侵袭,产量受到不同程度的影响,其中尤以病毒病、菌核病、霜霉病三大病害发生较为普遍而严重。茲就其有关情况及在四川省行之有效的防治措施概述于后,以供参考。一四川省油菜三大病害的发生情况油菜病毒病在四川各油菜主产地区均有发生。其症状因油菜品种不同而有差异。白菜型油菜和芥菜型油菜都是呈明脉花叶,叶
Rape is the major oilseed crop in Sichuan Province, with the main producing areas accounting for 20-30% of the total area of small spring crops. Currently in different regions, due to the invasion of various diseases, the yield is affected to varying degrees, of which the three major diseases of viral diseases, sclerotinia and downy mildew are more common and serious. I hereby give my summary of the situation and the effective prevention and control measures in Sichuan Province for reference. The occurrence of three major diseases of rapeseed in Sichuan Rape virus disease occurred in all main producing areas of Sichuan rape. Symptoms vary by rape variety. Brassica campestris and Brassica juncea are both clear pulse leaves, leaves