农药对生防菌厚孢普可尼亚菌ZK7生长发育的影响

Influences of Pesticides on the Growth and Development of the Biocontrol Strain Pochonia chlamydospora ZK7

摘要:

以PDA平板和PDB摇瓶培养法测定了6种常用化学农药对烟草根结线虫生防菌厚孢普可尼亚菌ZK7菌株孢子萌发率、平板抑制作用和液体培养生物量的影响。结果表明，生防菌ZK7菌株对低浓度的6种药剂均存在一定抗性，对不同药剂的抗性表现出差异。其中多菌灵和甲基托布津对生防菌ZK7菌株的抑制作用最大，其次是辛硫磷和雷多米尔，克百威和涕灭威抑制作用最小。

Abstract:

By using PDA plate and PDB shaking culture method, the effect of six chemical pesticides on the spore germination, plate inhibition and Biomass of the biological control strains Pochonia chlamydospora ZK7 for tobacco root-knot nematodes were measured. Results showed that strain ZK7 is resistant to six pesticides at lower concentration and the resistance level are different among different pesticides. Carbetamide and thiophos of them have the biggest resistance, next is phoxim-methyl and metaldehyde, the last is carbophenothion and aldoxycarb.