Compatibility of Four Common Chemical Pesticides With Three Entomopathogenous Fungi
《北方园艺》[ISSN:1001-0009/CN:23-1247/S]
- Issue:
- 2018年19
- Page:
- 42-47
- Research Field:
- Publishing date:
Info
- Title:
- Compatibility of Four Common Chemical Pesticides With Three Entomopathogenous Fungi
- Author(s):
- LI Min; XIE Ming; SU Donghui; QIU Weiliang; ZHANG Zhaorong; ZHANG Xiaolin
- (Institute of Plant Protection,Chinese Academy of Agricultural Sciences/State Key Laboratory for Biology of Plant Diseases and Insect Pests/Key Laboratory for Biological Control,Ministry of Agriculture,Beijing 100193)
- Keywords:
- pesticides; biocontrol fungi; conidial germination; mycelial growth; sporulation; compatibility
- PACS:
- -
- DOI:
- 10.11937/bfyy.20180834
- Abstract:
- Four common chemical pesticides （imidacloprid,thiamethoxam,insect amine,pymetrozine）were used as materials and three entomogenous funguses （Lecanicillium lecanii CA19 strain,Paecilomyces fumosoroseus Pf16 strain,Beauveria bassiana Bb11 strain） were used as the test fungi，using the methods of petri dish testing of conidial germination,mycelial growth and sporulation,the effect of the four chemical pesticides on conidial germination,mycelial growth and sporulation of the three funguses were examinated in laboratory for the reference to clear the compatibility of the chemical pesticides with the funguses.The results showed that for conidial germination,the effect of thiamethoxam on L.lecanii was maximum,the EC50 value was 464.0 μg·mL-1,by contrast,the least compatibility between them;the compatibility of pymetrozine with B.bassiana was the best,the EC50 value was 7 560.4 μg·mL-1.For mycelial growth,the effect of thiamethoxam on B.bassiana was maximum,the EC50 value was 324.9 μg·mL-1,by contrast,the worst compatibility between them;the compatibility of pymetrozine with L.lecanii was the best,the EC50 value was 23 390.8 μg·mL-1.For sporulation,the effect of insect amine on B.bassiana was maximum,the least compatibility between them compared with sporulation of treatment under the field spraying concentration;other combinations under the condition of field spraying concentration were well compatible.Totally,under the condition of the field spraying concentration of the pesticides,the pesticides in the test could be compatibale with the fungi,it could be chosed to use in the field.
Last Update: 2018-11-06