マラチオンの選択的適用: 虫,非標的昆虫,自然敵への影響

S F Camelo¹, C A D Silva^1,2, J C Zanuncio³

¹Universidade Estadual da Paraíba - UEPB, Programa de Pós-graduação em Ciências Agrárias, Campina Grande, PB, Brasil.

Brazilian journal of biology = Revista brasleira de biologia

|August 20, 2025

まとめ

マラチオンの殺虫剤を綿の列に交互に塗ることで虫を効果的に制御できますこの選択的施用は寄生虫や捕食者のような有益な昆虫を保存します

科学分野:

農業昆虫学
害虫対策

背景:

ボール・ウィービル (Anthonomus grandis) は,主に非選択的殺虫剤で管理されるアメリカ大陸の主要な綿の害虫です.
選択的な殺虫剤の適用を評価することは,統合的な害虫管理戦略にとって極めて重要です.

研究の目的:

マラチオンの選択的投与が虫の制御に与える影響を評価する.
綿の農業生態系における非標的昆虫と自然敵に対する影響を決定する.

主な方法:

ランダム化ブロック設計で,対照群,全列噴射,並列噴射のマラチオンを比較した.
適用のタイミングは,綿の四角で10%に達するボールウィービルの卵位置の穴をベースにします.
マラチオンの用量:1000gI.A L-1 について

主要な成果:

マラチオンは,すべての列をスプレーすると比較して,ボールウィービルの制御に等しい有効性を示しました.
交代列の噴霧で虫の群れを効果的に管理した.
選択的適用により,寄生虫 (B. vulgarisなど) や捕食動物 (Coccinellidae, Syrphidae, Araneaeなど) を含む主要な自然敵が保存された.

結論:

マラチオンの選択的,交代的な適用は,綿のボールウィービルの管理のための実行可能な戦略です.
このアプローチは有益な昆虫の群を保全することで生態学的に健全な方法となります

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