Lethal Effect of Oxygen Absorber (Ageless<sup>®</sup>) on Several Stored Grain and Clothes Pest Insects

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  • OHGUCHI Yoshiko
    Insect Physiology and Toxicology Laboratory, The Institute of Physical and Chemical Research Tokyo Metropolitan Institute for Neurosciences
  • SUZUKI Hideaki
    Insect Physiology and Toxicology Laboratory, The Institute of Physical and Chemical Research Japan Fruit Growers Co-operative Association
  • TATSUKI Sadahiro
    Insect Physiology and Toxicology Laboratory, The Institute of Physical and Chemical Research Tsukuba University
  • FUKAMI Jun-ichi
    Insect Physiology and Toxicology Laboratory, The Institute of Physical and Chemical Research

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Other Title
  • 貯穀害虫および衣類害虫に対する脱酸素剤エージレスの殺虫効果
  • チョコク ガイチュウ オヨビ イルイ ガイチュウ ニ タイスル ダッサンソザイ

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Description

Oxygen absorber (Ageless®), which have widely been used for protection from oxidation or molds in various foods, showed apparent lethal effect on four stored grain pests, Sitophilus zeamais, Tribolium castaneum, Callosobruchus chinensis, and Ephestia cautella and two clothes pests, Tinea pellionella and Anthrenus verbascii, when they were kept in O2-barrier packages containing the oxygen absorber and their food source. Tolerance level of the insects against low O2 conditions was shown to vary considerably with species and stages, the highest tolerance being shown by egg of S. zeamais which needed 12 days treatment with the oxygen absorbers for 100% mortality. As a sublethal effect of the oxygen absorbers, delay of adult eclosion was observed in S. zeamais. Application of the oxygen absorber to pest control was discussed.

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