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文山州位于云南省东南部。山区、半山区约占全州总面积的94％左右。农作物以玉米为主;近年陆稻栽种面积不断扩大,但从分蘖到抽穗的各生育阶段,由于红腹缢管蚜Rhopalosi-phum rufiabdominalis(Sasaki)及黑腹四脉绵蚜Tetraneura nigriabdominalis Sasaki等陆稻根蚜的为害,导致稻苗呈现半死半黄,稻丛坐蔸落塘等现象的出现,严重地影响陆稻生产。为了明确其发生和为害情况,从1983年6—7月进行了调查。现将调查结果分述如下。
Wenshan Prefecture is located in southeastern Yunnan Province. Mountain, Mid-Levels accounted for about 94% of the total area of the state. The main crops are corn. In recent years, the planting area of inland rice has been expanding continuously. However, from tillering to heading stages, Rhopalosi-phum rufiabdominalis (Sasaki) and Tetraneura nigriabdominalis Sasaki Phylloxera infestations, resulting in rice seedlings appear semi-dead half yellow, rice plexus sitting ponds and other phenomena, a serious impact on land-based rice production. In order to clarify its occurrence and victimization, a survey was conducted from June to July 1983. Now the findings are as follows.