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ISSN : 1225-0171(Print)
ISSN : 2287-545X(Online)
ISSN : 2287-545X(Online)
토양에서 분리한 곤충병원성세균 Bacillus thuringiensis의 혹명나방과 벼애나방에 대한 실내살충효과검정 및 생물학적 특성에 미치는 영향
초록
Pesticidal Activities and Effect on Its Biological Characteristics of Bacillus thuringiensis Strains from Soil against Rice Pests, Cnaphalocrosis medinalis and Maranga aenescens
Abstract
For biological control of larva of Cnaphalocrocis medinalis and Naranga aenescens do considerable damage to crops by folding and scraping the leaf tissue of rice, a large number of Bacillus thuringiensis isolates have been obtained from soil samples in Korea and the pesticidal activity was assayed against two insect pest species described above. Among 53 Bt isolates tested in bioassay, 18 and 13 isolates showed over 90% mortality against C. medinalis and N. aenescens, respectively. Some isolates (11 isolates including CAB141) presented dual activity against C. medinalis and N. aenescens. These isolates showed over 96% control effect in pest control in laboratory against larvae of C. medinalis. Also, it was investigated that pupation, pupal length, and adult emergence of larvae exposed to Bt suspension decreased. Especially, the pupal length of C. medinalis after being fed corn seedling leaves treated Bt suspension for 10 days, were much smaller than that of control.
Bacillus thuringiensis, Cnaphalocrocis medinalis, Naranga aenescens, Pesticidal activity, Pupal length, 혹명나방, 벼애나방, 살충활성, 용길이
Reference
Vol. 40 No. 4 (2022.12)
Frequency Quarterly
Doi Prefix 10.5656/KSAE
Year of Launching 1962
Publisher Korean Society of Applied Entomology
Online Submission
submission.entomology2.or.kr
KSAE
The Korean Society of Applied Entomology
