Productivity and physiology of kale inoculated with entomopathogenic fungi of Amazon region to control caterpilla
DOI:
https://doi.org/10.14295/cs.v14.3960Resumo
The use of biological control agents such as entomopathogenic fungi is an alternative for the control of kale
(Brassica oleracea L.) defoliating caterpillars. The objective was to investigate the efficacy of entomopathogenic
fungi of Amazon region in the control of defoliating caterpillars in kale and their impacts on the physiological
and agronomic responses of the crop. Field and greenhouse experiments were conducted in randomized block
design and completely randomized design, respectively. The treatments consisted in the application of isolates
of entomopathogenic fungi: Beauveria bassiana, Isaria sp., Metarhizium anisopliae and Trichoderma asperellum.
The control treatment consisted of the application of an chemical insecticide based on deltamethrin.Variables
referring to the development, yield and physiology of the plants were evaluated. Field results revealed that
plants treated with the fungi B. bassiana, M. anisopliae and T. asperellum showed levels of severity, number of
leaves and commercial yield that did not differ from the standard treatment; however, they showed a lower
population density of the defoliating caterpillar complex. The application of the treatments with M. anisopliae
and chemical insecticide showed better photosynthetic performance. In greenhouse, the fungus T. asperellum
provided greater plant height and robustness index in relation to the treatment with chemical insecticide.
The entomopathogenic fungi of Amazon region can be contributed to the integrated management of leaf
defoliating caterpillars in kale. These microorganisms have similar efficiency with chemical insecticides, being
ecologically and economically viable to mitigate the negative impacts caused by the systematic use of
chemicals.
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Copyright (c) 2023 Débora Oliveira Gomes, Naiane Franciele Barreira de Melo , Rubson da Costa Leite, Flavio Henrique Santos Rodrigues, Gledson Luiz Salgado de Castro, Jessivaldo Rodrigues Galvão, Rafael Gomes Viana, Telma Fátima Vieira Batista
Este trabalho está licenciado sob uma licença Creative Commons Attribution-NonCommercial 4.0 International License.
A revista se reserva o direito de efetuar, nos originais, alterações de ordem normativa, ortográfica e gramatical, com vistas a manter o padrão culto da língua, respeitando, porém, o estilo dos autores. As provas finais serão enviadas aos autores. Os trabalhos publicados passam a ser propriedade da revista Comunicata Scientiae, ficando sua reimpressão total ou parcial, sujeita à autorização expressa da direção do periódico. Deve ser consignada a fonte de publicação original. Os originais não serão evolvidos aos autores. As opiniões emitidas pelos autores dos artigos são de sua exclusiva responsabilidade.
