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春尺蠖(Apochemia cinerarius Ersch。)属鳞翅目尺蠖蛾科,是墨玉县桑树上的暴食性大害虫。飞机喷药防治是控制此虫危害的主要方法。1967年以来,我们采用了以卵孵化进度作为飞机喷药时期的标准,准确地预报出飞机防治适期的起讫日期,防虫效果有了显著提高。调查资料表明,飞机防治两次的,第一次以卵孵化率达50％时开始防治为好;如果只防治一次,则以孵化率达90％时开始防治为好。这里,卵开始孵化日期,可用卵期发育速度的数学常数求取,卵孵化后的逐日孵化率用孵化进度的预测式求
Apochemia cinerarius Ersch. Is a Lepidoptera moth, which is a predatory pest on the mulberry trees in Moyu County. Aircraft spraying prevention and control is the main method of controlling the insects. Since 1967, we have adopted the egg hatching schedule as the standard for the aircraft spraying period, and accurately predicted the starting and ending dates of the plane control and anti-insect effects have been significantly improved. Survey data show that the plane control twice, the first egg hatch rate of 50% when the start of prevention and control as well; if only one control, the hatching rate of 90% started as the prevention and control. Here, the egg begins to hatch, which can be calculated by the mathematical constant of egg development rate. The daily hatching rate after egg hatching is determined by the hatching schedule