植物源農(nóng)藥是指有效成分來(lái)源于植物體的農(nóng)藥。植物源農(nóng)藥在農(nóng)作物病蟲(chóng)害防治中具有對(duì)環(huán)境較好、毒性普遍較低、不易使病蟲(chóng)產(chǎn)生抗藥性等優(yōu)點(diǎn),是生產(chǎn)無(wú)公害農(nóng)產(chǎn)品應(yīng)優(yōu)先選用的農(nóng)藥品種。為了讓廣大農(nóng)民和農(nóng)技推廣工作者能對(duì)植物源農(nóng)藥品種有所了解,舉幾個(gè)例子予以說(shuō)明,供大家參考。參堿:?jiǎn)蝿┯?.2%、0.26%、0.3%、0.36%、0.5%水劑,0.3%水乳劑,0.36%、0.38%、1%可溶性液劑,0.3%乳油,0.38%、1.1%粉劑;混配制劑有1%苦參堿·印楝素乳油,0.2%苦參堿水劑+1.8%魚(yú)藤酮乳油桶混劑,0.5%、0.6%、1.1%、1.2%苦參堿·煙堿水劑,0.6%苦參堿·小檗堿水劑?煞謩e用于防治菜地小地老虎,十字花科蔬菜菜青蟲(chóng)、小菜蛾、蚜蟲(chóng),韭菜韭蛆,黃瓜紅蜘蛛、蚜蟲(chóng),茶樹(shù)茶毛蟲(chóng)、茶尺蠖,煙草煙青蟲(chóng)、煙蚜,小麥、谷子黏蟲(chóng),棉花紅蜘蛛,梨樹(shù)黑星病,蘋(píng)果樹(shù)紅蜘蛛、黃蚜、輪紋病。煙堿:?jiǎn)蝿┦?0%乳油;混配制劑有0.84%、1.3%馬錢(qián)子堿·煙堿水劑,2.7%莨菪堿·煙堿懸浮劑,27.5%煙堿·油酸乳油,10%除蟲(chóng)菊素·煙堿乳油,9%辣椒堿·煙堿微乳劑,15%蓖麻油酸·煙堿乳油?煞謩e用于防治十字花科蔬菜菜青蟲(chóng)、蚜蟲(chóng),小麥蚜蟲(chóng)、黏蟲(chóng),蘋(píng)果樹(shù)黃蚜,黃瓜紅蜘蛛、蚜蟲(chóng),菜豆蚜蟲(chóng),棉花棉鈴蟲(chóng)、蚜蟲(chóng),煙草煙青蟲(chóng),芥菜蚜蟲(chóng)。