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鱼藤是一种豆科植物,我国许多地区都有野生品种。通常用作制造杀虫剂原料的鱼藤是毛鱼藤和马来鱼藤。毛鱼藤是藤本植物。枝条在地面匍匐生长,外皮呈褐色。根短粗而有纵皮,分枝多,浅根性,适合大量栽培。马来鱼藤为攀缘性灌木,外皮灰棕色,根为深根性。鱼藤的杀虫有效成分是对昆虫有触杀和胃毒作用的鱼藤酮,它进入虫体后,可使昆虫的心脏和呼吸器官中毒。鱼藤酮类化合物可防治水稻、棉花、蔬菜、果树上的800余种害虫,特别适用于防治蚜虫、蝗虫、象鼻虫、猿叶虫、菜青虫、小菜蛾等。
The rattan is a legume, wild species in many parts of our country. The commonly used as a raw material for the manufacture of insecticide is the vines Malayan and rattan. Shade rattan is a vine. Branches creeping on the ground, brown skin. Roots stubby and longitudinal skin, more branches, shallow root, suitable for large-scale cultivation. Malayan rattan is a climbing shrub, the skin gray-brown, root deep root. The active ingredient of the rattan is the rotenone that has contact and stomach poisoning effects on the insects. When it enters the insect body, it can poison the heart and respiratory organs of insects. Rotenone compounds can prevent more than 800 species of pests on rice, cotton, vegetables and fruit trees and are especially suitable for controlling aphids, locusts, weevils, vermin, cabbage caterpillars and diamondback moth.