リンゴモンハマキ性フェロモントラップの発生予察への利用に関する研究(1): : トラップの高さと誘殺数ならびにほ場密度と誘殺数の関係

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  • Use of pheromones for monitoring of the Asiatic leafroller, Archippus breviplicanus (Lepidoptera: Tortricidae). I. Effect of trap height, flight activity and population density on male catches.
  • リンゴモンハマキ性フェロモントラップの発生予察への利用に関する研究　Ｉ　　トラップの高さと誘殺数ならびにほ場密度と誘殺数の関係
  • リンゴモンハマキセイ フェロモン トラップ ノ ハッセイ ヨサツ ヘ ノ リヨ
  • I. Effect of Trap Height, Flight Activity and Population Density on Male Catches
  • I. トラップの高さと誘殺数ならびにほ場密度と誘殺数の関係

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The optimum height of the sex pheromone trap for the male Asiatic Leafroller was found to be about 2.4m in standard apple and pear orchards, and about 1m in open fields near the orchard. When marked males were released in the orchard, the average distance of male flight during one night was 41-110m, and the average recovery was 15-30%. The number of male catches with pheromone traps was well related to the pupa-shell densities found in the orchard in the first and second generations. On the other hand in the overwintered generation, the number of male catches was much larger than the levels expected from the pupa-shell densities in the orchard, which may be due to possible immigration from distant orchards.

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