采用玻片浸渍法和叶片浸渍法测定艾蒿(Artemisia argyi Levl et Vant.)、猪毛蒿(Artemisia scoparia Waldst et Kitag.)、小飞蓬(Conyza canadensis(L.)Crong.)、苍耳(Xanthium sibiricum Patrin.)和水蓼(Polygonum hydropiper L.)5种野生植物的提取物稀释液对朱砂叶螨(Tetranychus cinnabarinus(Boisduval))的生物活性。结果表明:其地上部分乙醇提取物中,艾蒿提取物稀释液对朱砂叶螨有较好的毒杀作用,其余4种效果较差。采用玻片浸渍法测定了艾蒿粗提物对朱砂叶螨的毒力,以水及水与丙酮的混合液做溶剂所得 Lc_(50)分别为2 687mg/l和1 275mg/l。
【英文论文摘要】
Slide glass immersion and leaf blade immersion have been used to determine the or- ganism activity of the extracts of Artemisia argyi,Artemiaia scoparia,conyza canadensis,Xan- thium sibiricum and polygonum hydropiper to Tetranychus cinnabarinus in the laboratory.The results show that the alcohol extracts of Artrmisia argyi to Tetranychus cinnabarinus have a bet- ter functioning,the rest four,vice versa.The toxicity of Artemisia argyi extract to Tetranychus cinnabarinus by means of slide glass immersion have...