Toxicity Test of Seven Acaricides on Tetranychus urticaris on Clematis
Seven acaricides were selected in the toxicity test on Tetranychus urticaris that break out on Clematis L.. Slide impregnation,leaf disk and toxicity test on pot were applied respectively for eggs,female adults and single population on plant in toxicity test. Results indicated that the order of curative effect from good to bad was matrine,abamectin+pyridaben,buflomedin,bifenazate+etoxazole,abamectin+etoxazole,spirodiclofen and bifenazate. Toxicity test on pot showed that the LC50 value were higher than that in slide impregnation and leaf disk test. Mor-ever,the LC50 values that we obtained in this study were higher than previously reported LC50 values of T. urticaris that live on other plants which indicated that T. urticaria colonized on Clematis L. had higher tolerance to pesticides. This study would be helpful in providing theoreti-cal basis for T. urticaria chemical control.
ClematisTetranychus urticarisAcaricidesToxicity test
万方数据
维普
