persistência de agrotóxicos indicados na produção integrada de pêssego a trichogramma pretiosum riley, 1879 (hymenoptera: trichogrammatidae) persistence of pesticides used in integrated peach production on trichogramma pretiosum riley, 1879 (hymenoptera: trichogrammatidae)

persistência de agrotóxicos indicados na produção integrada de pêssego a trichogramma pretiosum riley, 1879 (hymenoptera: trichogrammatidae) persistence of pesticides used in integrated peach production on trichogramma pretiosum riley, 1879 (hymenoptera: trichogrammatidae)

;Fabrizio Pinheiro Giolo;Anderson Dionei Grützmacher;Cristiane Gindri Manzoni;José Carlos Fachinello;Douglas Daniel Grützmacher;Sandro Daniel Nörnberg
technocom 2008 Vol. 30 pp. 122-126
262
giolo2008revistapersistncia

Abstract

A persistência (duração da atividade nociva) de cinco agrotóxicos indicados na Produção Integrada de Pêssego (PIP) foi avaliada, expondo-se adultos de Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae) ao contato com resíduos de inseticidas, pulverizados sobre folhas, a diferentes intervalos de tempo, baseando-se na metodologia sugerida pela International Organization for Biological and Integrated Control of Noxious Animals and Plants (IOBC). Os resultados obtidos em relação à persistência, permitiu classificar os agrotóxicos, produto comercial/ingrediente ativo (g ou mL de produto comercial 100L-1), Dipterex 500/triclorfom (300), Sumithion 500 CE/fenitrotiona (150) e Tiomet 400 CE/dimetoato (120) como levemente persistentes (5-15 dias); o inseticida Malathion 1000 CE/malationa (200) como moderadamente persistente (16-30 dias) e o fungicida/acaricida Kumulus DF/enxofre (600) como persistente (> 31 dias) a adultos de T. pretiosum.
The persistence (duration of harmful activity) of five insecticides indicated in the Integrated Peach Production (IPP) was evaluated by adult exposure of Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae) to insecticide residues on plant leaves at different time intervals after treatment using the International Organization for Biological and Integrated Control of Noxious Animals and Plants (IOBC) based on the suggested methodology.The results obtained in relation to the disease persistence will permit to classify the pesticides, commercial formulation/active ingredient (g or mL commercial formulation 100L-1), Dipterex 500/trichlorphon (300), Sumithion 500 CE/fenitrothion (150) and Tiomet 400 CE/dimethoate (120) as slightly persistent (5-15 days); the insecticide Malathion 1000 CE/malathion (200) as moderately persistent (16-30 days) and the fungicide Kumulus DF/sulphur (600) as persistent (>31 days) to T. pretiosum adults.

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