Effects of a Bt-based insecticide on the functional response of Ceraeochrysa cincta preying on Plutella xylostella
| Autor: | Isabela Cristina de Oliveira Pimenta, Nathália Alves dos Santos, Gustavo Oliveira de Magalhães, Gilmar da Silva Nunes, Sergio Antonio De Bortoli, Matheus Moreira Dantas Pinto |
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| Přispěvatelé: | Sao Luis Fac Educ, Universidade Estadual Paulista (Unesp), Universidade de São Paulo (USP) |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Insecticides Insecta animal structures Health Toxicology and Mutagenesis Bacillus thuringiensis Functional response Zoology Moths 010501 environmental sciences Management Monitoring Policy and Law Biology Toxicology Insect Control 01 natural sciences Predation Insecticide Resistance Animals Pest Control Biological Predator Chrysopids Ovum 0105 earth and related environmental sciences Larva Diamondback moth fungi Plutella Integrated pest management General Medicine biology.organism_classification 010602 entomology Predatory Behavior Instar Trophic interactions PEST analysis Brazil |
| Zdroj: | Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1573-3017 0963-9292 |
| DOI: | 10.1007/s10646-020-02244-x |
| Popis: | Made available in DSpace on 2020-12-10T17:36:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-07-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Plutella xylostella, is the main pest infestingBrassicacrops, and products based onBacillus thuringiensis(Bt) are frequently used in strategies for its biocontrol. The present study aimed to evaluate whether a Bt-based bioinsecticide affects the predation behavior ofCeraeochrysa cinctawhen preying onP. xylostella. Three larval instars of the predator and the eggs and second-instar larvae of the moth were used, with the prey either untreated or treated with a Bt-based product (Xentari (R)). Results showed that, the first larval instar ofC. cinctapresented a type II functional response when preying upon untreated eggs, and a type III response when preying upon Bt-treated eggs, while the second and third instars presented type II and III responses, respectively, in both situations. The predator's first and third larval instars presented a type II functional response when preying upon untreated larvae and a type III response when preying upon Bt-treated larvae. However, the predator's second-instar larvae showed a type II response in both treatments. The results obtained allowed us to conclude that the Bt-based insecticide tested affects the predation behavior of the first-instar larvae ofC. cinctaon eggs and of both the first- and third-instar larvae of this predator onP. xylostellalarvae. Sao Luis Fac Educ, Jaboticabal, SP, Brazil Sao Paulo State Univ, Fac Agr & Vet Sci, Jaboticabal, SP, Brazil Univ Sao Paulo, Fac Philosophy Sci & Letters Ribeirao Preto, Ribeirao Preto, SP, Brazil Sao Paulo State Univ, Fac Agr & Vet Sci, Jaboticabal, SP, Brazil CAPES: 001 FAPESP: 2018/10246-0 |
| Databáze: | OpenAIRE |
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