Egyptian Journal of Biological Pest Control | |
Pathogenicity of the entomopathogenic fungus, Beauveria bassiana (Bals.) Vuill. endophytic and a soil isolate against the squash beetle, Epilachna chrysomelina (F.) (Coleoptera: Coccinellidae) | |
article | |
Hassan, Feyroz Ramadan1  Abdullah, Samir Khalaf2  Assaf, Lazgeen Haji3  | |
[1] Department of Plant Protection, College of Agriculture, University of Duhok;Medical Laboratory Technology Department, Alnoor University College;General Directorate of Agriculture-Duhok | |
关键词: Pathogenicity; Beauveria bassiana; Endophyte; Epilachna chrysomelina; Soil; Iraq; | |
DOI : 10.1186/s41938-019-0169-x | |
学科分类:化学工程(综合) | |
来源: Springer | |
【 摘 要 】
Laboratory and field bioassays were conducted to evaluate the pathogenicity of an endophytic and a soil isolate of the entomopathogenic fungus, Beauveria bassiana (Bals.) Vuill. against different stages of squash beetle, Epilachna chrysomelina (F.) (Coleoptera: Coccinellidae). Both isolates were identified by ITS rDNA sequence analysis. Both isolates were pathogenic to the squash beetle; however, their potential was different according to the conidia concentration and the exposure period. Three days post treatment, (100%) mortality rate was obtained, when the first and second larval instars were treated by the B. bassiana ES (soil isolate) compared to 83.67 and 72.60%, respectively when treated with the endophytic isolate. A percentage of 17.67% malformation occurred among the adults that emerged from treated pupae. The highest mortality percentage under field conditions were 28.67 and 22.33% for larvae and adults, respectively.
【 授权许可】
CC BY
【 预 览 】
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