棉花生产上的以瓢治蚜工作,关键在于得到大量的瓢虫卵块。1978年5月上旬,我们对自然瓢源作了调查,发现小麦玉米的带状田,4月上旬播种的空档玉米,平均每32穴幼苗叶片上有瓢虫卵一块,每块平均有卵34粒。随后,我们组织6名妇女采集卵块7天,共剪到卵块800余片,计有卵30万粒。全大队的 Cotton production on the scoop governance aphid work, the key is to get a lot of ladybug eggs. In early May 1978, we conducted a survey of natural scoops and found that in the strip of wheat and corn fields, in mid-April sown corn, an average of every 32 holes on the leaves of ladybird eggs, each with an average of eggs 34 grains. Subsequently, we organized six women to collect egg masses for seven days, cutting more than 800 eggs in total, counting 300,000 eggs. The whole brigade