烟草主要害虫综合防治初步研究

A Preliminary study on Integrated control of Important Tobacco pests

研究结果表明，综合防治与当地习惯防治相比，有翅蚜减少７２．０％，地老虎断苗株率减少８０．１％，烟青虫为害株率减少８６．３％，上等烟比例提高近一倍，每亩增加收入８０～１１０元。通过对害虫的测报，指导烟农合理施药，不仅防治效果好，而且减少用药２～３次。

Results showed that the ncember of winged aphides was decreased by 72. 0% with integrated control as compared with local conventional control significant difference in the aphid number in the fields was α=0. 001. The rates of broken seedlings by cutworms and injured plants by tobacco worms were decreased by 80. 1% and 86. 3%,respectively. The proportion of high quality tobacco nearly doubled and the income per mu was increased by 80-110 yuan.Prediction of pests and proper application of pesticides not only can get good control results, but also can reduce 2-3 times of applying pesticides.