Artigo Produção Nacional Revisado por pares

The potential of Isaria spp. as a bioinsecticide for the biological control of Nasutitermes corniger

2017; Taylor & Francis; Volume: 27; Issue: 9 Linguagem: Inglês

10.1080/09583157.2017.1380163

ISSN

1360-0478

Autores

Rosineide da Silva Lopes, Geiziquele de Lima, Maria Tereza dos Santos Correia, Antônio Félix da Costa, Elza Áurea de Luna Alves Lima, Vera Lúcia de Menezes Lima,

Tópico(s)

Insect Pest Control Strategies

Resumo

The termite Nasutitermes corniger is a serious pest infesting urban areas of Brazil and many other countries. Control largely depends on synthetic pesticides whose indiscriminate use can impact the environment and the health of humans and other animals. Alternative strategies against insect pests, such as biological control by entomopathogenic fungi, could be effective while minimising these deleterious effects. We analysed the actions of the entomopathogenic fungi Isaria farinosa, Isaria fumosorosea, and Isaria javanica against the insect N. corniger. Our results indicated that the fungi examined were pathogenic against N. corniger, with I. farinosa ESALQ1355 being the most efficacious strain, resulting in the death of 95% of the workers (LC50 6.66 × 104 conidia/mL) and 85% of the soldiers (LC50 6.81 × 104 conidia/mL). This is the first report of the pathogenicity of Isaria spp. on N. corniger. These in vitro results suggest that I. farinosa ESALQ1355 demonstrates a significant biological potential for controlling N. corniger.

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