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Ciência Florestal
Centro de Pesquisas Florestais - CEPEF, Departamento de Ciências Florestais - DCFL, Programa de Pós Graduação em Engenharia Florestal - PPGEF
ISSN: 0103-9954
EISSN: 0103-9954
Vol. 27, No. 4, 2017, pp. 1403-1407
Bioline Code: cf17115
Full paper language: Portuguese
Document type: Note
Document available free of charge

Ciência Florestal, Vol. 27, No. 4, 2017, pp. 1403-1407

 pt OCORRÊNCIA ESPONTÂNEA DE Beauveria bassiana check for this species in other resources (Bals. Criv.) Vuill. 1912 (ASCOMYCETES: CLAVICIPITACEAE) SOBRE Thaumastocoris peregrinus check for this species in other resources (HEMIPTERA: THAUMASTOCORIDAE)
Lorencetti, Grasielle Adriane Toscan; Potrich, Michele; Mazaro, Sérgio Miguel; Lozano, Everton Ricardi; Gonçalves, Thiago Evandro & Dallacort, Sidinei

Resumo

Exemplares de Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae), inseto-praga do gênero Eucalyptus check for this species in other resources , foram encontrados mortos em um plantio Eucalyptus grandis check for this species in other resources no município de Realeza, região sudoeste do estado do Paraná, Brasil, apresentando micélio-branco sobre o corpo. Foram realizados procedimentos para isolamento (em meio de cultura Batata-Dextrose-Agar) e identificação do patógeno, sendo que a relação entre o micro-organismo e o inseto foi estabelecida através do postulado de Koch. A partir de procedimento padrão, foi identificado o fungo Beauveria bassiana. Em laboratório foi realizado teste de patogenicidade, e o mesmo causou mortalidade confirmada em 72,2 % dos insetos, na concentração de 1,0 x 108 conídios.mL-1, após seis dias de inoculação. Assim, verificou-se que Beauveria bassiana infecta naturalmente Thaumastocoris peregrinus, com ocorrência espontânea no estado do Paraná.

Palavras-chave
percevejo-bronzeado; fungos entomopatogênicos; Eucalyptus.

 
 en SPONTANEOUS OCCURRENCE OF Beauveria bassiana check for this species in other resources VUILL. 1912 (ASCOMYCETES: CLAVICIPITACEAE) ON Thaumastocoris peregrinus check for this species in other resources (HEMIPTERA: THAUMASTOCORIDAE)
Lorencetti, Grasielle Adriane Toscan; Potrich, Michele; Mazaro, Sérgio Miguel; Lozano, Everton Ricardi; Gonçalves, Thiago Evandro & Dallacort, Sidinei

Abstract

Exemplars of Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae), insect pest of the genus Eucalyptus check for this species in other resources , were found dead in the Eucalyptus grandis check for this species in other resources plantation in the city of Realeza, the southwest region of the state of Paraná, Brazil, with white mycelial growth on the surface of the body. Isolation procedures were performed (in Potato-Dextrose-Agar culture) and identification of the pathogen, whereas the ratio between the microorganism and the insect has been established by Koch’s postulate. The fungus through standard procedures, was identified as Beauveria bassiana. In the laboratory testing pathogenicity were performed and caused mortality confirmed in 72.2% of the insects at the concentration of 1.0 x 108 conidia.mL-1 after six days inoculation. Studies on the selection of isolates should be performed and justified by the growing demand of the forest sector in search of control strategies for this insect pest. Thus, was verified that Beauveria bassiana naturally infects Thaumastocoris peregrinus, occurring spontaneously in the Paraná state.

Keywords
bronze bug; entomopathogenic fungi; Eucalyptus.

 
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