portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">苦portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">楝portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">油含有一种称为portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">印楝素portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">（Azadirachtin）的portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">化学成分portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">，具有强效的抗微生物活性，同时具有杀虫效果，可用来作为portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">天然杀虫剂portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">，市售的杀虫剂商品内也会添加这种成分。借由喷洒苦楝portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">萃取液portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">，可使植物变得不好吃，而阻止portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">昆虫portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">取食。如昆虫继续取食，则会抑制昆虫的产卵和脱皮能力。对人、动物、portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">鸟类portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">无害无毒，完全环保。但是因为印度苦楝温和而环保的资材，并非一般的portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">化学农药portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">、杀虫剂，所以并不会马上毒杀昆虫，会慢慢使昆虫无法进食、成长及繁殖而死亡。portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">作用方式portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">主要是让昆虫不喜欢停留喷洒的区域而离开需要保护的植物，并且吸收到印度苦楝而发生portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">发育不全portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">的状况，所以需要一段时间（昆虫的portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">发育周期portant; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 0.01ms !important;">大约7到14天）。