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我省蔗区大多属亚热带气候,年平均气温18℃～22℃,六、七、八、九月为雨季,年降雨量700～1200多公厘,相对湿度60～80％,很适宜于甘蔗绵蚜繁殖。因此绵蚜成
Most of the sugarcane planting areas in our province are subtropical with annual average temperature of 18 ℃ ~ 22 ℃. Six, seven, eight and nine are the rainy seasons. The annual rainfall is more than 700 ~ 1200 mm and the relative humidity is 60 ~ 80% Cotton aphid breeding. So cottonworms into