Assessment of a potential bioproduct for controlling Cerotoma arcuata tingomariana (coleoptera: Chrysomelidae).

Autor: Quiroga-Cubides G; Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Departamento de Bioproductos, Mosquera, Colombia., García-Riaño L; Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Centro de Investigación Tibaitatá, Mosquera, Colombia., Grijalba-Bernal EP; Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Departamento de Bioproductos, Mosquera, Colombia., Espinel C; Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Centro de Investigación Tibaitatá, Mosquera, Colombia., Otálora PEC; Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Departamento de Bioproductos, Mosquera, Colombia.; Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Centro de Investigación Tibaitatá, Mosquera, Colombia., Guevara EJ; Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Centro de Investigación La Libertad, Meta, Colombia., Gómez-Álvarez MI; Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Departamento de Bioproductos, Mosquera, Colombia., Barrera MC; Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Departamento de Bioproductos, Mosquera, Colombia.
Jazyk: angličtina
Zdroj: Journal of applied microbiology [J Appl Microbiol] 2022 Aug; Vol. 133 (2), pp. 1063-1077. Date of Electronic Publication: 2022 May 29.
DOI: 10.1111/jam.15630
Abstrakt: Aims: The leaf-feeding pest Cerotoma arcuata tingomariana (Bechyné) (Coleoptera: Chrysomelidae) produces huge economic losses in different crops. This study aimed to produce conidia by semisolid-state fermentation and to establish the insecticidal activity of two formulation prototypes based on a native Beauveria bassiana isolate for controlling this pest.
Methods and Results: A novel fabric-based semisolid-state fermentation strategy for quick and large-scale conidia production was performed and characterized. Conidia were formulated as an emulsifiable concentrate (EC) and a water-dispersible granulate (WG). Afterwards, the mortality of C. a. tingomariana adults was assessed. A conidia concentration of 2.9 × 10 9 conidia cm -2 was obtained after 9 days-course fermentation and a yield of 33.4 g kg -1 dry-substrate.
Conclusions: The polyester fabric-based fermentation is an efficient technique for producing and collecting B. bassiana spores. Regarding LC 90 , the potency analysis showed that the EC was 21-fold more potent than the non-formulated conidia, and ~ 2.6-fold more potent than the WG.
Significance and Impact of Study: A high throughput fermentation based on polyester fabric as support for B. bassiana conidia production and subsequent formulation as an EC comprises a promising strategy for obtaining a bioproduct to control adults of C. a. tingomariana and other Chrysomelidae pests.
(© 2022 Society for Applied Microbiology.)
Databáze: MEDLINE
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