Isolation and Activity of Insect Pathogenic Bacillus thuringiensis Strain from Soil

• Published in: Korean Journal of Applied Entomology Vol. 45; no. 3
• Main Authors: Kim, D.A. (Chungnam National University, Daejeon, Republic of Korea), Kim, J.S. (Chungnam National University, Daejeon, Republic of Korea), Kil, M.R. (Chungnam National University, Daejeon, Republic of Korea), Youn, Y.N. (Chungnam National University, Daejeon, Republic of Korea), Park, D.S. (Kangwon National University, Chuncheon, Republic of Korea), Yu, Y.M. (Chungnam National University, Daejeon, Republic of Korea), E-mail: ymyu@cnu.ac.kr
• Format: Journal Article
• Language: Korean
• Published: 01.12.2006
• Subjects: AISLAMIENTO; BACILLUS THURINGIENSIS; BIOASSAYS; Culex pipiens pallens; ENSAYO BIOLOGICO; ISOLATION; ISOLEMENT; PLUTELLA XYLOSTELLA; SPODOPTERA LITURA; TEST BIOLOGIQUE
• ISSN: 1225-0171

Bacillus thuringiensis strains were isolated from the domestic soil and a strain was selected that had a new host range and high toxicity against agriculture insect pest. The 142 samples of soil were sampled from the mountains, paddy fields and patches, in Daejon, Chungnam, Chungbuk and Jeonbuk and used for the investigation. Sixteen B. t strains were isolated from 12 samples among collected samples. There were 11 strains that showed toxical activity on Plutella xylostella (Lepidoptera: Yponomeutidae), 7 steins on Spodoptera litura (Lepidoptera: Noctuidae), 5 strains on Arete coerulea (Lepidoptera: Noctuidae), 5 strains on Culex pipiens pallens (Diptera: Culicidae) among the 16 isolated B. t strains.