Pheromone Traps for the Japanese Gypsy Moth (Lymantridae: Lepidoptera): Trap Design and the Amount of Synthetic Pheromone Loaded onto a Lure

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  • 日本産マイマイガ（チョウ目：ドクガ科）の性フェロモントラップ：ルアーの担持量，トラップ形状と誘殺数の関係
  • ニホンサン マイマイガ(チョウモク:ドクガカ)ノ セイ フェロモントラップ : ルアー ノ タンジリョウ,トラップ ケイジョウ ト ユウサツスウ ノ カンケイ

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The effects of trap design on trap capture of two Japanese gypsy moth subspecies, Lymantria dispar japonica (Motchulsky) and L. d. hokkaidoensis Goldschmidt were tested in three locations (Bibai, Matsudo and Gifu). Among an USDA (United State Department of Agriculture) milk carton trap, a funnel trap and a sticky-type trap (SE-trap) baited with a rubber septum impregnated with 0.5 mg (+)-disparlure, SE-trap tended to capture the highest number of male moths. The effects of the amount of synthetic pheromone loaded onto a rubber septum were also tested in Sapporo and Matsudo. A rubber septum loaded with 0.5 or 5 mg of (+)-disparlure captured an equivalent number of male moths with an USDA polyvinyl chloride (PVC) lure in both places. These results suggest that a milk carton trap baited with a PVC lure may be replaced with a SE-trap baited with a rubber septum loaded with 0.5–5 mg (+)-disparlure to monitor the gypsy moth populations in Japan.

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