蔬菜田常用农药对诺氏虫疠霉生长和产孢的影响

研究了17种蔬菜田常用杀虫剂、杀菌剂对诺氏虫疠霉生长及产孢的影响。结果表明，在10种杀虫剂中，恶二嗪类杀虫剂安打对菌落生长和产孢的影响最小，抑菌率仅为15．78％，产孢量与对照无显著差异。新烟碱类杀虫剂吡虫啉对诺氏虫疠霉抑制作用最强，抑菌率达到100％。7种杀菌剂对诺氏虫疠霉生长和产孢影响都很显著，其中取代苯基类杀菌剂乙霉威对其影响最小，抑菌率为31．51％，但产孢量不到对照的1／3。有机硫类杀菌剂代森锰锌对诺氏虫疠霉生长、产孢的影响最大，抑菌率为100％。

Effects of some common pesticides on the growth and the production of spores of Pandora nouryi Humber

The results showed that all the 17 pesticides had dramatic effect on the growth of Pandora nouryi Humber (P < 0.01) . Within 10 insecticides, the restrain rate of imidacloprid was 100% . The amount of spores produced in 1h on different culture medias treated with different pesticides showed that the spores produced by the colonies treated with imidacloprid was 0. On the contrary, the restrain rate of indoxacarb was 15.78%, the spores produced by the colony treated with indoxacarb was close to that of the control. The restrain rate of mancozeb was 100% in 7 fungicides . The amount of spores produced in 1h on different culture medias with different fungicides showed that the spores produced by the colonies of mancozeb was 0. The restrain rate of diethofencarb was the lowest, 31.51%. However, the spores produced by the colony of di-ethofencarb was only one third of the control.