INSECTICIDAL EFFECT OF SOME BACTERIA ON CHERRY SLUGWORM (CALIROA CERASI (LINNAEUS, 1758) (HYMENOPTERA: TENTHREDINIDAE)

摘要

In this study, 5 bacterial strains (Bacillus cereus, Bacillus atrophaeus, Bacillus globisporus, Brevibacillus bre-vis, and Alcaligenes denitrificans subsp. xylosoxydans), isolated from different insect species in the Eastern Anatolia region of Turkey, were identified on the basis of fatty acid methyl ester analysis and carbon source utilization profiles by using Microbial Identification System (MIS) and/or MicroPlate Systems (BIOLOG). Their insec-ticidal effects were tested on adult Caliroa cerasi on Petri dishes, in vitro. Seven days after application, all of the tested strains showed more or less insecticidal activity against this pest. The highest activities were obtained from Brevibacillus brevis strain FD-1 and Bacillus cereus strain FD-63 causing 86.7 and 100% mortality, respectively. These values were not statistically different from that of the positive control (Kingbo). The mortality rates of the other bacterial applications were lower than that of the positive control, but not that of the negative control. In conclusion, Bacillus cereus strain FD-63 and Brevibacillus brevis strain FD-1 are good candidates for use as biological control agents against this economically important pest.