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Escape pattern of adult Platypus koryoensis (Coleoptera:Curculionidae) on the basis of individual gallery

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한국응용곤충학회 (Korean Society Of Applied Entomology)
초록

Escape pattern of the ambrosia beetle Platypus koryoensis (Murayama) based on individual gallery was investigated. The survey was conducted in four oak forests located in Chuncheon, Hanam, Paju and Seongnam, and escape patterns from individual gallery were surveyed using emergence trap attached at the entrances of galleries formed in 2010. The number of adults caught in each trap was periodically counted from May 2011 to September 2012. The adults ambrosia beetle was caught over two years after infestation. The escape patterns in the first and second year after infestation showed different types; in the first year, escape of adults from gallery was observed one or two times whereas escape from gallery was observed two times in the second year with variation in aspect of escape density and timing. Moreover, variations in escape pattern between trees or between galleries in the same tree was observed. Colonization success rate in living tree was higher than that of dead tree, but the number of progeny per gallery in living tree was lower than that of dead tree. Colonization success rate in the galleries of second year was lower than that of first year, but the number of progeny per gallery of second year was higher than that of first year.

저자
  • Cha Young Lee(Division of Forest Disease and Insect Pests, Korea Forest Research Institute)
  • Youngwoo Nam(Division of Forest Disease and Insect Pests, Korea Forest Research Institute)
  • Won Il Choi(Division of Forest Disease and Insect Pests, Korea Forest Research Institute)
  • Dae-Sung Won(Climate Change Research Institute of Korea)
  • Jong-Kuk Kim(Department of Forest Resources Protection, Kangwon National University)