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http://dx.doi.org/10.7585/kjps.2015.19.4.411

Combination effects of Organic Materials and Bacillus thuringiensis on Spodoptera exigua  

Han, Ji Hee (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA)
Yoon, Jihye (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA)
Son, Sujin (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA)
Kim, Jeong Jun (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA)
Lee, SangYeob (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA)
Publication Information
The Korean Journal of Pesticide Science / v.19, no.4, 2015 , pp. 411-417 More about this Journal
Abstract
This study is conduced to investigate control efficacy of mixture of plant extracts which has been reported to control pest and Bacillus thuringiensis or alone. Control efficacy of 0.025% matrine or mixture of 0.016% matrine and BT ($5{\times}10^4cfu$) against $3^{rd}$ instar larvae of beet armyworm were best as 98.7% and 93.3%. Treatment of mixture of 0.01% matrine and BT ($5{\times}10^4cfu$) showed the mortality of 69.3%. In the case of neem, when the mixture of 0.1% neem and BT was applied to larvae of S. exigua, their mortality was 50.0% and weight of larvae were significantly different compare with control and only neem treatment. Therefore For effective control reducing population of beet armyworm and possibility to develop resistance against BT and eco-friendly agents, mixture of 0.016% Matrine and BT ($5{\times}10^4cfu$) could be used.
Keywords
Matrine; Neem; Insecticidal activity; Bacillus thuringiensis; Beet armyworm; Spodoptera exigua;
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Times Cited By KSCI : 4  (Citation Analysis)
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