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Revista Colombiana de Entomología
versão impressa ISSN 0120-0488
Resumo
ROCHA DA SILVA, RAFAEL et al. Compatibility of pesticides with the generalist predatory mite Amblyseius largoensis (Acari: Phytoseiidae). Rev. Colomb. Entomol. [online]. 2015, vol.41, n.1, pp.76-80. ISSN 0120-0488.
The aim of this study was to evalúate the compatibility of synthetic and alternative pesticides to an important natural enemy associated with pest mites in citrus orchards, in Sao Luís Maranhao State, Brazil: the generalist predatory mite Amblyseius largoensis. The pesticides tested were abamectin, mineral oil, mancozeb, pyridaben, neem oil (Azadiractha indica) and crude cottonseed oil (Gossypiumspp.). Compatibility of pesticides to A. largoensiswas assessed as to adverse effects on mortality and fertility as well as to interference with growth rate. Overall, the results of adverse effects and growth rate were corroborative. Mancozeb, mineral oil and neem oil were classified as slightly harmful while the cotton oil and abamectin were classified as moderately harmful and pyridaben was considered harmful. The growth rate of A. largoensisfemales exposed to mancozeb, mineral oil, neem oil and cotton oil was positive indicating population growth. We conclude that neem oil, mineral oil and mancozeb are compatible with A. largoensisas they were less harmful to this predator.
Palavras-chave : Vegetal oils; grated pest management; Physiological selectivity; Toxicity.