溴氰菊酯溴氰菊酯即敌杀死,纯品为白色无味晶体,在水中溶解度极低,易溶于丙酮、乙醇、苯、二甲苯等有机溶剂。在酸性和中性溶液中不分解,在碱性溶液中易分解失效。对日照稳定。对人、畜毒性中等,其毒性比其他几种拟除虫菊酯高。对鱼、蜜蜂毒性很大。由于用量极少,在植物体内残留量极低。对棉花有刺激增产的作用。 Deltamethrin deltamethrin kill the enemy, the pure white tasteless crystal, very low solubility in water, soluble in acetone, ethanol, benzene, xylene and other organic solvents. In acidic and neutral solution does not break down, easy to decompose in alkaline solution failure. Sunshine stable. On humans, livestock poisoning medium, its toxicity than several other pyrethroid high. To fish, bees are very toxic. Due to the very small amount of residues in plants is extremely low. Stimulation of cotton yield increased role.