论文部分内容阅读
1980～1983年,我们对哈尔滨地区秋白菜蚜虫的调查研究认为:发生的蚜虫种类主要是桃蚜。桃蚜 Myzus Persicae(Sulzer)在有温室的地方可以常年发生,以无翅蚜吸汁和有翅蚜传毒危害。桃蚜在温度适合时,生长繁殖迅速,世代交替。桃蚜室内饲养,当温度为6～23.4℃时,需4～7.5天产生一代。室外饲养,当温度为9.2～30℃时,需3～9天产生一代。哈尔滨地区的桃蚜每年发生8.5～18代,平均13～15代。有温室的地方一年可以发生20多代。秋白菜蚜虫的迁飞始期是七月中下旬,迁飞高峰是七月末到八月中旬,迁飞末期是八月底。
From 1980 to 1983, we conducted a survey on the aphids in autumn in Harbin and concluded that the main aphid species occurred were Myzus persicae. Peach aphid Myzus Persicae (Sulzer) can occur perennial in places with greenhouses, and is poisoned by aphids and winged aphids. Myzus persicae at a suitable temperature, rapid growth and reproduction, generational alternation. Peach aphid indoor feeding, when the temperature is 6 ~ 23.4 ℃, take 4 to 7.5 days to produce a generation. Outdoor feeding, when the temperature is 9.2 ~ 30 ℃, take 3 to 9 days to produce a generation. Peach aphid in Harbin occurs 8.5 to 18 generations per year, an average of 13 to 15 generations. Where there is a greenhouse can occur more than 20 generations a year. Autumn cabbage aphids migration is mid to late July, the peak of migration is from the end of July to mid August, the end of the migration is the end of August.