飞防的七大优势长期以来,国内采用常规药械防治害虫,因地域环境条件不同存在的问题和困难很多:第一,病虫发生时间性较强,特别是食性或钻蛀性害虫,如蝗虫、枣尺蠖、黏虫、食心虫等,必须在短时内施药物,将其消灭在幼虫期。但用人工喷洒农药速度慢,效果差;第二,病虫发生的部位特殊性,由于病虫习性是栖息在茎叶背面、翘皮裂缝处、枝杈 Seven major advantages of flying defense For a long time, the domestic use of conventional drug prevention and control of pests, due to different geographical and environmental conditions exist many problems and difficulties: First, the occurrence of pests and diseases strong time, especially feeding or boring pests such as locusts , Jujube scales 黏, sticky insects, moth worms, etc., must be administered within a short time, to eliminate it in the larval stage. However, spraying pesticides with artificial speed is slow, the effect is poor; Second, pest occurrence parts of the particularity, because pest habits are perched on the back of stems and leaves,