Toxicological effects of a difenoconazole fungicide on a non-target butterfly
非標的チョウに対するジフェノコナゾール系殺菌剤の毒性影響 (AI 翻訳)
Klaus Fischer, Jawaria Khalid, Mine Yilmazer, Ange Raharivololoniaina
🤖 gxceed AI 要約
日本語
農薬の中でも研究が少ない殺菌剤に着目し、市販のジフェノコナゾール製剤が非標的昆虫であるヤマトスジグロシロチョウ（Pieris napi）に与える影響を室内実験で調べた。殺菌剤を摂取した幼虫の生存率は対照の60%に対し15%に低下し、殺虫剤との併用では1%まで激減した。亜致死影響として発育遅延や成虫サイズの縮小も確認され、トリアゾール系殺菌剤の昆虫への一般毒性が示唆された。農業景観における昆虫減少の一要因として殺菌剤が関与する可能性を提示する。
English
This study examines the toxicity of a commercial difenoconazole fungicide on a non-target butterfly, Pieris napi, under laboratory conditions. Feeding on treated host plants reduced larval survival to 15% versus 60% in controls, with 1% survival when combined with an insecticide. Sublethal effects included prolonged development and reduced adult size. The results suggest triazole fungicides may be generally toxic to Lepidoptera and contribute to global insect biodiversity loss.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
生物多様性喪失はTNFDや自然関連情報開示の中核テーマであり、農薬影響のエビデンスは農業と自然資本の共倒れリスクを評価する上で重要。日本企業のサプライチェーンにおける農薬使用の影響評価にも示唆を与える。
In the global GX context
Insect decline and pesticide risk are increasingly material to biodiversity-related disclosure frameworks such as CSRD/ESRS E4 and TNFD. This study provides causal evidence on fungicide toxicity that can inform biodiversity impact assessments and regulatory discussions globally.
👥 読者別の含意
🔬研究者:Provides organism-level evidence of fungicide toxicity to non-target Lepidoptera, challenging assumptions that fungicides are benign to insects.
🏢実務担当者:For agricultural and chemical companies, this underscores the need to assess supply-chain impacts on biodiversity, potentially affecting sourcing and product stewardship.
🏛政策担当者:Supports reconsidering regulatory risk assessment of triazole fungicides for non-target arthropods, with implications for pesticide approval frameworks.
📄 Abstract（原文）
Abstract Agricultural intensification, driven by increasing food demand, is one of the main drivers of global biodiversity loss. Pesticides, including fungicides, may increase crop yield but pose substantial threats to the environment. However, our current knowledge on the effects of fungicides on biodiversity suffers from less research interest compared to other pesticides and a neglect of insect herbivores. We here investigate the effects of a commercially available, ready-to-use difenoconazole fungicide on a non-target insect, the butterfly Pieris napi , under controlled laboratory conditions. When being fed with fungicide-treated host plants, butterfly larvae showed a strongly reduced survival (15%) compared to controls (60%). Survival in larvae treated with the fungicide plus an insecticide was only 1%. Sublethal effects of the fungicide included prolonged development and reduced adult size. Our results indicate a surprisingly high toxicity of the tested fungicide formulation on P. napi . Based on the available literature, we speculate that triazole fungicides may be in general toxic to Lepidoptera and potentially other herbivorous insects. This study contributes to the growing evidence that fungicides may well be involved in the loss of insect biodiversity in agricultural landscapes at the global scale.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1007/s10646-026-03133-5first seen 2026-08-02 05:09:24
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