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灰飞虱是水稻的重要害虫之一,其不仅刺吸取食水稻小麦、玉米及高粱等作物,更重要的是传播水稻条纹叶枯病、水稻黑条矮缩病、小麦丛矮病、玉米粗缩病等病毒病害,并且传毒造成的病毒病为害远大于直接造成的为害损失。由于至今没有理想的防治病毒病的药剂,防治灰飞虱成为有效控制病毒病的最有效手段。灰飞虱一直以来主要采用化学农药进行防治,但化学农药的长期、大量、不合理使用
Laodelphax striatellus (L.) is one of the important pests of rice. It not only sucks crops such as rice, corn and sorghum, but also spreads rice stripe disease, rice black-streaked dwarf, wheat dwarf disease and corn Shrink disease and other virus diseases, and virus damage caused by virus far greater than the damage caused directly. As there is no ideal anti-virus agent so far, the prevention and control of planthopper has become the most effective means of controlling the virus disease. Laodelphax striatellus has been mainly used chemical pesticides to prevent and control, but chemical pesticides long-term, large, unreasonable use