论文部分内容阅读
目前,在春玉米穗期防治玉米鑽心虫(主要是第二代玉米螟)还没有理想的方法。这时植株高大,地面施药困难;同时在京郊二代玉米螟发生期长,又逢雨季,更增加了防治上的困难。为此,我们于1960年和1963年分别在前永丰公社(7,000亩)和东北旺公社(4,098亩)试用飞机防治。两次试验证明,效果均属显著。
At present, there is no ideal way to prevent and cure corn borer (mainly the second generation corn borer) in the spring corn ear stage. Plant tall at this time, difficult ground application; the second generation of corn borer in the suburbs of Beijing, a long period of occurrence, but also every rainy season, but also increased the difficulty of prevention and control. To this end, we piloted the prevention and control of aircraft at the Former Yongfeng Commune (7,000 Mu) and the Dongbeiwang Commune (4,098 Mu) in 1960 and 1963, respectively. Two tests show that the effect is significant.