13种常用农药和玫烟色棒束孢SCAU-IFCF01的相容性研究

Compatibility of Thirteen Common Pesticides with Isaria fumosorosea SCAU-IFCF01

为了研究常用农药和生防真菌玫烟色棒束孢Isaria fumosorosea之间的相容性,本文测定了13种常用农药对玫烟色棒束孢孢子萌发、菌丝生长及产孢量的影响。试验结果表明,杀虫剂与玫烟色棒束孢的相容性优于杀菌剂。其中,高效氯氰菊酯与玫烟色棒束孢相容性最好,在常规浓度下,对玫烟色棒束孢孢子萌发和菌丝生长的抑制率分别只有2.42%和1.62%,对产孢基本无抑制作用,苏云金芽胞杆菌和氯氰菊酯与玫烟色棒束孢也有较好的相容性,二者在常规使用浓度下对孢子萌发、菌丝生长、产孢量的抑制率分别为6.05%、2.83%、22.41%和16.3%、7.81%、16.67%。高效氯氟氰菊酯、氟啶脲、丙溴磷与玫烟色棒束孢有一定的相容性。丙环唑、百菌清、戊唑醇、木霉菌、阿维菌素、甲维盐与玫烟色棒束孢的相容性则相对较差。

To evaluate the compatibility of common pesticides with Isaria fumosorosea, the impacts of thirteen common pesticides on spore germination, mycelia growth and sporulation of I. fumosorosea were tested. Results showed that the tested insecticides with I. fumosorosea were more compatible than the tested germicides. The compatibility of beta cypermethrin with the fungus was the best, it had the lowest inhibition rate on the spore germination and mycelia growth (2.42% and 1.62%), and had no inhibition on sporulation of the fungus at the conventional concentration. Bacillus thuringiensis and cypermethrin showed moderate compatible with the fungus, which inhibition rates on conidial germination, mycelia growth and sporulation were 6.05%, 2.83%, 22.41%and 16.3%, 7.81%, 16.67%, respectively. Cyhalothrin, chlorfluazuron and profenofos showed lower compatibility with the fungus. However, propiconazole, chlorothalonil, tebuconazole, trichodermaspp, emamectin, avermectins and benzoate were hardly compatible with the fungu.