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菜蚜是为害蔬作的主要害虫之一,同时又是蔬菜花叶病和其他病毒病的傳播者。它的寄主植物有油菜、白菜、芥菜、蘿白、大头菜等。1958年10月,我們在广东馬坝調查50余亩菜地,发現不同程度的为害,其中受害很严重的,叶片背面,虫数多至1500个,少的也有200~300个。受害叶片縐縮,植株变黃,最后凋萎枯死。受害花穗生长畸形,結莢少,影响产量(油菜)。
Vegetable aphids are one of the major pests for harvested vegetables, and are also carriers of vegetable mosaic disease and other viral diseases. Its host plants are rape, cabbage, mustard, radish, kohlrabi and so on. In October 1958, we investigated more than 50 mu of vegetable fields in Maba, Guangdong Province and found that the damage was very serious. The back of the leaves was back with as many as 1,500 insects and as few as 200-300. Affected leaves wrinkled, plants yellow, and finally withered dead. Defects spike growth deformity, less pods, affecting the yield (rape).