Effectiveness of entomopathogenic fungi on the mortality of Dactylopius opuntiae (Hemiptera: Dactylopiidae) under laboratory conditions

Authors

  • Carlos Jesús Ramírez-Sánchez Postgrado en Innovación en Manejo de Recursos Naturales-Campus San Luis Potosí-Colegio de Postgraduados. Iturbide 73, Col. Centro, Salinas de Hidalgo, San Luis Potosí, México. CP. 78600v
  • Francisco Javier Morales-Flores Postgrado en Innovación en Manejo de Recursos Naturales-Campus San Luis Potosí-Colegio de Postgraduados. Iturbide 73, Col. Centro, Salinas de Hidalgo, San Luis Potosí, México. CP. 78600
  • Raquel Alatorre-Rosas Postgrado en Fitosanidad-Entomología y Acarología-Colegio de Postgraduados. Carretera México-Texcoco km 36.5, Montecillo, Texcoco, Estado de México, México. CP. 56230
  • Jaime Mena-Covarrubias Programa de Entomología- Campo Experimental Zacatecas-INIFAP. AP. Núm. 18. Calera de Víctor Rosales, Zacatecas, México. CP. 98500
  • Santiago de Jesús Méndez-Gallegos Postgrado en Innovación en Manejo de Recursos Naturales-Campus San Luis Potosí-Colegio de Postgraduados. Iturbide 73, Col. Centro, Salinas de Hidalgo, San Luis Potosí, México. CP. 78600

DOI:

https://doi.org/10.29312/remexca.v0i22.1854

Keywords:

biological control, nopal, plague

Abstract

Currently, at a national and international level, Dactylopius opuntiae Cockerell (Hemiptera: Dactylopiidae) has become the main phytosanitary enemy of nopal (Opuntia spp.). For their control, there are few options, but the use of agrochemicals has been privileged, with the collateral effects that its use implies. Considering that the use of entomopathogenic fungi represent a viable alternative in the integrated management of this phytophagous, in this investigation the pathogenicity and virulence of three species and two isolates were evaluated: Beauveria bassiana (GHA, Bb1), Metarhizium anisopliae (Ma129, Ma130) and Lecanicillium lecanii (974, 2009) on mortality of second instar nymphs of D. opuntiae. The results showed that all isolates evaluated have a different degree of pathogenicity; however, M. anisopliae and L. lecanii were more effective. Isolation Ma 130, belonging to M. anisopliae showed the highest virulence determined in function of the CL50 with a value of 6.63 x 107 conidia mL-1, under controlled conditions. Therefore, this isolation could be considered in a control strategy of D. opuntiae.

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Published

2019-04-02

How to Cite

Ramírez-Sánchez, Carlos Jesús, Francisco Javier Morales-Flores, Raquel Alatorre-Rosas, Jaime Mena-Covarrubias, and Santiago de Jesús Méndez-Gallegos. 2019. “Effectiveness of Entomopathogenic Fungi on the Mortality of Dactylopius Opuntiae (Hemiptera: Dactylopiidae) under Laboratory Conditions”. Revista Mexicana De Ciencias Agrícolas, no. 22 (April). México, ME:1-14. https://doi.org/10.29312/remexca.v0i22.1854.

Issue

No. 22 (2019): Especial

Section

Articles

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