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Possibility of simultaneous control of pine wilt disease and Thecodiplosis japonensis and or Matsucoccus thunbergianae on black pine (Pinus thunbergii) by abamectin and emamectin benzoate  

Lee, Sang-Myeong (Southern Forest Research Center, Korea Forest Research Institute)
Kim, Dong-Soo (Southern Forest Research Center, Korea Forest Research Institute)
Kim, Chul-Su (Southern Forest Research Center, Korea Forest Research Institute)
Choo, Ho-Yul (Department of Applied Biology and Environmental Sciences, Institute of Agriculture and Life Sciences, Gyeongsang National University)
Lee, Dong-Woon (Department of Applied Biology, Institute of Agricultural Sciences, Kyungpook National University)
Publication Information
The Korean Journal of Pesticide Science / v.12, no.4, 2008 , pp. 363-367 More about this Journal
Abstract
Abamectin 1.8% EC and emamectin benzoate 2.15% were evaluated the simultaneous control effect of both insect pests on black pine (Pinus thunbergii) against Thecodiplosis japonensis and Matsucoccus thunbergianae. Abamectin 1.8% EC was highly effective against T. japonensis and M thunbergianae, however, emamectin benzoate was highly effective against only M. thunbergianae when abamectin and emamectin benzoate were applied through trunk injection against T. japonensis and M thunbergianae at the rate of 1 ml per cm in diameter of breast height. The rate of gall formation of T. japonensis was 0% at the applied year, but 85% at the following year. However, the rate of gall formation was over 90% at the treatment of emamectin benzoate showing no difference compared with control. Abamectin 1.8% EC and emamectin benzoate 2.15% showed high control efficacy representing 89.1% and 91.4% against M. thunbergiana, respectively.
Keywords
Forest insect pests; pine wilt disease; Thecodiplosis japonensis; Matsucoccus thunbergianae; abamectin; emarmectin benzoate;
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