Adult Eclosion and Emergence of the Black Pine Bast Scale, Matsucoccus thunbergianae (Homoptera: Coccoidae: Margarodidae)

솔껍질깍지벌레 성충의 우화습성

  • ;
  • Law (Department of Environmental and Forest Biology, College of Environmental Science and Forestry, State University of New York)
  • 박승찬 (전남대학교 농과대학 임학과) ;
  • Published : 1991.03.01

Abstract

Adult eclosion and emergence behavior of the black pine base scale, Matsucoccus thunbergianae Miller and Park, was studied in a laboratory. Adult eclosion in males did not appear to be limited to a specific time of the day. Newly molted male adults, at room temperatures, usually remained in the cocoons as pre-emergence adults for 0.5-20. days before emerging; most males emerged within one hour after the onset of photophase, and emergence was faster at higher light intensity. Most females molted into adults within three hours after the onset of photophase, and they were active immediately after molting. Quiescence in males appears to help the scales concentrate their sexual activity within a particular period of the day as well as to protect newly molted adults until sexual and locomotive maturity.