Effect of $CO_2$-treatment on Oviposition and Colony Development of the Bumblebee, Bombus ignitus

탄산가스 처리가 호박벌(Bombus ignitus)의 산란성 및 봉세발달에 미치는 효과

  • 윤형주 (농촌진흥청 농업과학기술원 잠사곤충부 곤충자원과) ;
  • 김삼은 (농촌진흥청 농업과학기술원 잠사곤충부 곤충자원과) ;
  • 이상범 (농촌진흥청 농업과학기술원 잠사곤충부 곤충자원과) ;
  • 박인균 (농촌진흥청 농업과학기술원 잠사곤충부 곤충자원과)
  • Published : 2003.06.01

Abstract

The effect of $CO_2$-treatment on interrupting diapause of Bombus ignitus was examined to provide a means for year-round rearing of the bumblebee. When mated young queens were exposed to 65% or 99% $CO_2$ for 30 min daily during two consecutive days, oviposition rate increased to 75% and 77%, respectively, comparing 50% in $CO_2$-untreated queens. At the same time, the days needed to first oviposition shortened to 17-18 days in $CO_2$-treated queens, comparing to 30 days in $CO_2$-untreated queens. $CO_2$-treatment at the second day after mating was appropriate to the oviposition and colony development. $CO_2$-treatment showed a positive effect on the oviposition and colony development, but less than them of overwintered queen in numbers of produced progeny. It can be concluded that $CO_2$-treatment to B. ignitus is insufficient to produce commercial grade bumblebee colony in spite of its capability for promoting oviposition, because the treatment failed to form a big colony.

Keywords

Bumblebee;Bombus ignitus;Carbon dioxide;Oviopositon rate;Colony development

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