Seletividade de agroquímicos ao ácaro predador Iphiseiodes zuluagai Denmark & Muma (Acari: Phytoseiidae)
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Data
1998-06-01
Autores
Reis, Paulo R.
Chiavegato, Luiz G. [UNESP]
Moraes, Gilberto J.
Alves, Everaldo B.
Sousa, Elber O.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Entomológica do Brasil
Resumo
Testes de efeito adverso de agroquímicos sobre Iphiseiodes zuluagai Denmark & Muma (Acari: Phytoseiidae) foram conduzidos em laboratório, utilizando o método residual de contato com pulverização em superfície de vidro. Foram testados 42 produtos químicos, a maioria utilizada na citricultura brasileira. A mortalidade e o efeito dos produtos na reprodução do ácaro foram avaliados diariamente durante oito dias. Os produtos foram classificados quanto ao efeito total causado ao ácaro (combinação da mortalidade e efeito na reprodução) em quatro classes de toxicidade propostas pela IOBC/WPRS. Os resultados mostraram que cerca de 26% dos produtos testados foram inócuos (captan, clofentezine, fenbutatin oxide, fosetyl, hexythiazox, hidróxido de cobre, naled, oxicloreto de cobre, óxido cuproso e tetradifon), 14% levemente nocivos (abamectin, chlorothalonil, sulfato de cobre, thiophanate-methyl (PM) e ziram), 7% moderadamente nocivos (enxofre, parathion-methyl e thiophanate-methyl (SC)) e 52% nocivos ao ácaro (acrinathrin, amitraz, azinphos-ethyl, azocyclotin, benomyl, bifenthrin, bromopropylate, carbaryl, carbosulfan, chlorfenapyr, cyhexatin, dicofol, fenpropathrin, fenpyroximate, mancozeb, óleo mineral e vegetal, phosmet, propargite, quinomethionate, triazophos, e vamidothion).
The side-effects of agrochemical to Iphiseiodes zuluagai Denmark & Muma (Acari: Phytoseiidae) were studied in laboratory using the residual contact spray method in glass surface. Forty-two plant protection products, used in Brazilian citrus orchards, were tested. Mite mortality and fecundity were evaluated for eight days. Tested products were ranked in toxicity classes, according to IOBC/WPRS system, by the total effect (combination of mortality and reproduction effect). The results showed that ca. 26% of the tested products were harmless (captan, clofentezine, fenbutatin oxide, fosetyl, hexythiazox, copper hydroxide, naled, copper oxychloride, cuprous oxide and tetradifon), 14% slightly harmful (abamectin, chlorothalonil, copper sulphate, thiophanate-methyl (PM) and ziram), 7% moderately harmful (sulfur, parathion-methyl and thiophanate-methyl (SC)) and 52% harmful to the mite (acrinathrin, amitraz, azinphos-ethyl, azocyclotin, benomyl, bifenthrin, bromopropylate, carbaryl, carbosulfan, chlorfenapyr, cyhexatin, dicofol, fenpropathrin, fenpyroximate, mancozeb, mineral and vegetable oils, phosmet, propargite, quinomethionate, triazophos and vamidothion).
The side-effects of agrochemical to Iphiseiodes zuluagai Denmark & Muma (Acari: Phytoseiidae) were studied in laboratory using the residual contact spray method in glass surface. Forty-two plant protection products, used in Brazilian citrus orchards, were tested. Mite mortality and fecundity were evaluated for eight days. Tested products were ranked in toxicity classes, according to IOBC/WPRS system, by the total effect (combination of mortality and reproduction effect). The results showed that ca. 26% of the tested products were harmless (captan, clofentezine, fenbutatin oxide, fosetyl, hexythiazox, copper hydroxide, naled, copper oxychloride, cuprous oxide and tetradifon), 14% slightly harmful (abamectin, chlorothalonil, copper sulphate, thiophanate-methyl (PM) and ziram), 7% moderately harmful (sulfur, parathion-methyl and thiophanate-methyl (SC)) and 52% harmful to the mite (acrinathrin, amitraz, azinphos-ethyl, azocyclotin, benomyl, bifenthrin, bromopropylate, carbaryl, carbosulfan, chlorfenapyr, cyhexatin, dicofol, fenpropathrin, fenpyroximate, mancozeb, mineral and vegetable oils, phosmet, propargite, quinomethionate, triazophos and vamidothion).
Descrição
Palavras-chave
Acari, citros, Citrus spp, manejo integrado de pragas, controle biológico, inimigo natural, Acari, citrus, Citrus spp, integrated pest management, biological control, natural enemy
Como citar
Anais da Sociedade Entomológica do Brasil. Sociedade Entomológica do Brasil, v. 27, n. 2, p. 265-274, 1998.