作者在本刊1986年第四期上发表了“控制温度以调节越冬后七星瓢虫的产卵期”一文后,又进一步作了大批饲养方法的研究。过去饲养瓢虫多采用罐头瓶加网纱盖,每日二次投料,工作量大,不适于大批饲养和生防需要。最近,应用饲养棚饲养获得瓢虫较为理想。饲养棚近似于种植蔬菜的大棚,棚内种植易被蚜虫寄生的植物,待蚜虫繁殖到一定量,放养经人工控制休眠处理的七星瓢虫成虫,7—10天可产卵,然后集中采卵(或幼虫)到大田释放。经几年试验:饲养棚每平方米饲养成虫250头,得幼虫15万头,以每棚10平方米计算,可获幼虫150万头,供棉田防治蚜虫。 After the author published the fourth issue in 1986, “Controlling the temperature to control the spawning period of the ladybird ladybird” after winter, a large number of breeding methods were further studied. In the past, the ladybugs were mostly reared with canned bottles and gauze caps. They were fed twice daily with heavy workload and were not suitable for large-scale feeding and biocontrol needs. Recently, the use of rearing sheds to obtain ladybugs is ideal. Feeding shed is similar to planting greenhouses, planting sheds easily aphid parasites plants until aphids breed to a certain amount, stocking artificial dormancy ladybird ladybird, 7-10 days can spawn, and then focus on the eggs (Or larvae) to the field release. After several years of testing: feeding shed per square meter of adult feeding 250, larvae have 150,000 to 10 square meters per shed basis, larvae will be 1.5 million for cotton aphids.