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我站经过多年实践观察发现:不同作物布局对天敌有一定的影响。从1977年开始曾小型布局试验,证实有效。于是1979年便在我县陈庄公社大张大队五、七、八三个生产队200亩棉田上作大面积带状种植试验。经过系统观察,详细记载结果证实,在自然天敌存量极少的情况下,仍能招引大量天敌,对控制棉花蚜虫,棉铃虫取得良好效果,并对棉花增产显著。省工省钱,收效大,深受群众欢迎。
After years of practice, I have observed that different crop layouts have some influence on the natural enemies. From 1977 onwards a small layout test, proved effective. So in 1979 he was in the county Chenzhuang commune brigade five, seven, eight production team of 200 acres of cotton for large area strip planting test. After systematic observation, the detailed description of the results confirmed that a large number of natural enemies can still be attracted under the condition of very low stock of natural enemies, good results have been achieved in controlling cotton aphids and cotton bollworms, and cotton yield has been significantly increased. Provincial workers save money, large effect, welcomed by the masses.