Assessment of Artificial Rearing Method for the Pine Sawyer Beetle, Monochamus alternatus (Coleoptera: Cerambycidae)

Studies were carried out to determine the most suitable diet for rearing beetle and to develop a mass rearing technique by which pine sawyer beetle (Monochamus alternatus) could be reared from larvae to adults without need for periodic care. Eleven diets and two temperature regimes were tested. Diets were grouped into: Chemically defined diets; plant tissue diets; natural diets and silk worm diet. Larvae were reared individually in petri dishes. Their growth rate and body sizes were compared with the pine sawyer beetles collected from the forest. Suitability of the diet was evaluated using a 13 point rating system. Controlled temperature treatments were superior to room temperature treatments. Log diet was the best diet tested but bark diet was selected as the standard diet to be used for rearing Monochamus alternatus larvae due to technical, environmental and economic reasons.マツノマダラカミキリ虫を飼育するのに最適な人工飼料を決定し，定期的な世話をしなくてもマツノマダラカミキリ幼虫が成虫になるような大量飼育法を開発するために試験を行った。11種類の飼料と2段階の温度条件下で調べた。飼料は化学合成飼料，植物組織からなる飼料，自然条件下の餌からなる飼料，およびカイコ用飼料に分けられる。幼虫はシャーレ内で個体飼育し，羽化後に成長率と体の大きさについて野外のものと比較した。飼料の好適さは13 point rating systemにより評価した。温度調節された場合の方が室温の場合より優れていた。丸太からなる飼料が最適であったが，技術的，環境的および経済的理由から，マツノマダラカミキリ幼虫の飼育にはBark dietが標準的な飼料であると判定された