Pathogenic activity of Isaria spp. for control of Dactylopius opuntiae (Hemiptera: Dactylopiideae) and the effects of selected insecticides

Rosineide Da Silva Lopes, Luciana Gonçalves De Oliveira, Geiziquele De Lima, Maria Tereza Dos Santos Correia, Antonio Félix Da Costa, Elza Áurea De Luna-Alves Lima, Vera Lúcia De Menezes Lima


We analyzed the activity of the entomopathogenic fungi Isaria farinosa, I. fumosorosea and I. javanica against the cochineal Dactylopius opuntiae, as well as the effects of the insecticides clorpirifos, acetamiprid, thiamethoxam and lambda-cyhalothrin on the conidia germination, mycelium growth and a sporulation of the fungi.These fungi were not pathogenic to cochineal. This the first report of the efficiency of Isaria spp. against this the insect. The bioassays of the compatibility of the insecticides acetamiprid and thiametoxam with species of Isaria indicate the possibility of the joint use of these products in studies on the control of D. opuntiae.

Palabras clave

Biological control; cochineal; entomopathogenic fungi; insecticide


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Acta Zoológica Mexicana (nueva serie), 2020, Vol. 36, es una publicación electrónica continua de acceso abierto, editada por el Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec 351, Col. El Haya, Xalapa, Ver. C.P. 91073, Tel. (228) 842-1800, extensión 4112 Editor responsable: Sergio Ibáñez-Bernal, Reservas de Derechos al Uso Exclusivo No. 04-2019-021314325500-203, versión on-line ISSN 2448-8445, [antes también impresa ISSN 0065-1737], con registros otorgados por el Instituto Nacional del Derecho de Autor. Responsable de la última actualización de este volumen, Sergio Ibáñez-Bernal, Carretera antigua a Coatepec, 351, Col. El Haya, Xalapa, Ver., C.P. 91073. Fecha de la última modificación: 18 de junio de 2020.


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