Does the sugi bark borer, Semanotus japonicus larvae control the life cycle by using temperature as a cue of seasonal change?

2016 Fiscal Year Final Research Report

• Project/Area Number: 26450217
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Forest science
• Research Institution: Forestry and Forest Products Research Institute
• Principal Investigator: KITAJIMA Hiroshi 国立研究開発法人森林総合研究所, 森林昆虫研究領域, チーム長 (70353662)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 穿孔性害虫 / 生活史 / 休眠 / 低温 / カミキリムシ

Outline of Final Research Achievements

The sugi bark borer, Semanotus japonicus (Coleoptera, Cerambycidae), is an important pest of Japanese cedar and Japanese cypress. The life span of the borer is usually one year. However, some individuals require two years in one generation. We found out that the larvae stopped pupating under low temperature condition, and such larvae required two years in one generation. In this case, full-grown larvae pass the first winter in the pupal chambers. They develop to the adults in the chambers without eating next summer. The adults pass the second winter in the chambers, and they emerged next spring.

Free Research Field

森林昆虫