サツマイモ畑におけるイモゾウムシ個体数の変化と被害
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- 安田 慶次
- 沖縄県農業試験場
書誌事項
- タイトル別名
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- Occurrence of West Indian Sweet Potato Weevil, Euscepes postfasciatus(Fairmaire)(Coleoptera: Curculionidae) and Damage to Sweet-Potato(Ipomoea batatas(L.)Lam.) Fields.
- サツマイモバタケ ニ オケル イモゾウムシ コタイスウ ノ ヘンカ ト ヒガイ
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説明
The occurrence of the West Indian Sweet Potato Weevil (WSPW) and the damage it causes in sweetpotato fields treated and not treated with insecticide from planting to harvesting were surveyed. WSPW females invading the fields oviposited first in the stems, and the mean number of insects including larvae, pupae and adults in stems increased to 1.22-3.90 per plant in untreated plots. The first appearance in tubers was later than that in stems and the mean number of the weevils in the tubers increased to 5.04-7.97 per plant at harvesting. Stems damage by the WSPW larvae was found 30-60 days earlier than tuber damage in untreated plots. When the insecticide was applied topically on the ground near stems, the level of damage and number of WSPW did not increase as much in both stems and tubers. Damage to stems did not affect the growth of the sweet potato, and seemed acceptable. It is possible that the ratio of damaged stems can predict tuber damage and whether to apply insecticide or not.
収録刊行物
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- 日本応用動物昆虫学会誌
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日本応用動物昆虫学会誌 41 (2), 83-88, 1997
日本応用動物昆虫学会
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詳細情報 詳細情報について
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- CRID
- 1390001206449095424
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- NII論文ID
- 110001113622
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- NII書誌ID
- AN00186121
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- ISSN
- 13476068
- 00214914
- http://id.crossref.org/issn/00214914
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- NDL書誌ID
- 4217531
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可