Main Article Content


The increased pest actions of the red cashew beetle Crimissa cruralis (Coleoptera: Chrysomelidae in Brazilian populations of cashew Anacardium occidentale (Anarcardiaceae) is a cause for concern. The entomopathogenic fungus, Beauveria bassiana, was evaluated as a biocontrol of larvae. The percent mortalities of second and third instar larvae produced by in vivo application of a commercial formulation containing the fungal spores were evaluated. Treatment of larvae at concentrations of 1.2 x 106, 2.5 x 106, 3.7 x 107 e 5.0 x 107 conidia/mL resulted in 49, 56, 66 and 72 % mortality within eight days, respectively. Based on the finding, it is recommended that the B. bassiana formulation should be employed at the lowest concentrations (1.2 x 106 and 2.5 x 106 conidia/mL) with repeat application to avoid possible inactivation of the fungus by abiotic environmental factors. Cost-benefit assessments of the use of this biological agent will be important for determining the economic feasibility of its application in the field.

Araújo-de-Souza, S., De Sousa-Maciel, G. P., Dias-Pini, N. D. S., Gonçalves-Barbosa, M., Martins-Duarte, P., & Pastori, P. L. (2019). Pathogenicity of Beauveria bassiana (Deuteromycota: Hyphomycetes) to the red cashew beetle Crimissa cruralis (Coleoptera: Chrysomelidae: Galerucinae: Blepharida-group) in laboratory conditions. Revista Colombiana De Entomología, 45(2), e8606.

ABBOTT, W. S. 1925. A method for computing the effectiveness of insecticides. Journal of Economic Entomology 18 (15): 265-267.

ALVES, S. B. Controle microbiano de insetos. 1998. São Paulo: Manole, 386 p.

HAMMER, Ø.; HARPER, D. A. T.; RYAN, P. D. 2001. PAST: Paleontological statistics software package for education and data analysis. Palaeontologia Electronica 4 (1), art. 4. Available in: [Review date: 16 September 2019]

INSTITUTO BRASILEIRO DE GEOGRAFIA E ESTATÍSTICA. 2017. Castanha-de caju. Available in: and [Review date: 16 September 2019].

MESQUITA, A. L. M.; BRAGA SOBRINHO, R. 2014. Ocorrência e importância de inimigos naturais de pragas em cajueiro no estado do Ceará (Brasil). Essentia 16 (1): 103-110.

MESQUITA, A. L. M.; FANCELLI, M.; BRAGA SOBRINHO, R. 2009. Ocorrência e importância de inimigos naturais de pragas em cultivo de cajueiro orgânico. Embrapa Agroindústria Tropical-Comunicado Técnico, 4 p.

OLIVEIRA, M. T.; MONTEIRO, A. C.; LA SCALA-JÚNIOR, N.; BARBOSA, J. C.; MOCHI, D. A. 2016. Sensibilidade de isolados de fungos entomopatogênicos às radiações solar, ultravioleta e à temperatura. Arquivos do Instituto biológico 83: 1-7.

REZENDE, S. R. F.; CURVELLO, F. A.; FRAGA, M. E.; REIS, R. C. S.; CASTILHO, A. M. C.; AGOSTINHO, T. S. P. 2009. Control of the Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae) with entomopathogenic fungi. Revista Brasileira de Ciência Avícola 11 (2): 121-127.

SALGADO-NETO, G.; VAZ, M. B.; GUEDES, J. V. C. 2017. White grub (Coleoptera: Melolonthidae) mortality induced by Ophiocordyceps melolonthae. Ciência Rural 47 (6): e20160788.