Occurrence of Fruit Damage and Optical Timing of Insecticide Applications for Control Period of Fruit-Infesting Lepidopterous Pests in Mating-Disruptor-Treated Apple Orchards

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  • ARAI Tomonori
    Apple Research Station, National Institute of Fruit Tree Science
  • TAKANASHI Masaaki
    農業・食品産業技術総合研究機構東北農業研究センター
  • IHARA Fumio
    Apple Research Station, National Institute of Fruit Tree Science
  • YAGINUMA Katsuhiko
    Apple Research Station, National Institute of Fruit Tree Science

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Other Title
  • 複合交信攪乱設置リンゴ園におけるチョウ目害虫の果実加害時期と防除時期
  • フクゴウ コウシン カクラン セッチ リンゴエン ニ オケル チョウモク ガイチュウ ノ カジツ カガイ ジキ ト ボウジョ ジキ

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Abstract

<p>Damage caused by fruit-infesting lepidopterous pests was investigated in mating-disruptor-treated apple orchards in the central region of Iwate Prefecture in 2007 and 2008. The level of fruit damage was highest from mid-May to June. Insecticide applications about 1 week after leafing（ late April）and around petal fall to 10 days after petal fall（late May）were effective in suppressing the damage caused by fruit-infesting lepidopterous pests.</p><p></p>

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