论文部分内容阅读
玉米螟是我国高粱、玉米和谷子等杂粮作物的主要害虫,建国30多年来曾进行过大量研究工作,取得了很大进展。但是,近年来玉米螟对作物穗期为害日趋严重,对产量和品质影响较大,已成为生产上极待解决的问题。据此,我们于1981～1984年在台安、铁岭、黑山、盘山、辽中和法库等县,开展了应用飞机喷洒技术防治穗期玉米螟的研究。4年来试验作业115架次,面积为4.72万亩,示范作业1158架次,面积为46.2万亩。总计试验示范1273架次,面积为50.92万亩。试验结果表明:应用飞机喷洒技术防治高粱穗期玉米螟效果为65%左右,兼治高粱蚜效果达95%以上,取得一药治两虫的艮好效果,为高粱上的两大主要害虫同时防治,开辟了一条新的途径。
Corn borer is a major pest of cereal crops such as sorghum, corn and millet in China. A great deal of research work has been done in the past 30 years since the founding of the People’s Republic of China. Great progress has been made. However, in recent years, the corn borer is more and more harmful to crop spikes and has a great impact on the yield and quality. It has become an extremely difficult problem in production. Based on this, we carried out studies on the control of maize borer at the heading stage using aircraft spraying technology in the counties of Taian, Tieling, Montenegro, Panshan, Liaozhong and Faku in 1981-1984. In the past four years, 115 sorties of operations were carried out, covering an area of 47,200 mu and demonstrating 1,158 sorties with an area of 462,000 mu. A total of 1273 sorties demonstrations, an area of 50.92 million mu. The test results show that the application of the plane spraying technology to control the corn borer at the spike stage is about 65% and the effect of treating the sorghum spider is over 95%, and the two pesticides can be used to control the two main pests on the sorghum simultaneously , Opened up a new way.