Resistência de cultivares de feijão-caupi ao ataque de Callosobruchus maculatus (Coleoptera: Chrysomelidae: Bruchinae) em condições de armazenamento

Júnior, A. L. Marsaro; Vilarinho, A. A.

doi:10.7213/cienciaanimal.v9i1.11078

Cited by 14 publications

(6 citation statements)

References 6 publications

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“…The cultivars used were: BRS Tracuateua, BR 17 Gurgueia, Epace 10 and Sempre Verde (insect rearing). These cultivars were obtained from the Brazilian Agricultural Research Corporation (Embrapa Meio‐Norte) and used because they are commonly adopted by local farmers (Brazil) and presented resistance to C. maculatus 23‐26 …”

Section: Methodsmentioning

confidence: 99%

Efficacy of bioactive compounds and their association with different cowpea cultivars against their major stored pest

Barbosa

Oliveira

Silva

et al. 2020

Pest Management Science

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Background: Stored grain insects are controlled with fumigant insecticides which can select resistant insect populations and cause environmental and applicator contamination. Thus, resistant cultivars and chemical constituents of essential oils are an alternative to the almost exclusive use of these insecticides. The effects of the combination of cowpea cultivars Vigna unguiculata (L.) Walp. with chemical constituents of essential oils against Callosobruchus maculatus were determined. Four cowpea cultivars: BRS Tracuateua, BR 17 Gurgueia, Epace 10 and Sempre Verde (insect rearing) untreated were used in the experiments and combined with chemical constituents of essential oil: eugenol, geraniol and trans-anethole. The biological parameters observed were: total egg number and eggs per grain, egg viability (%), insects emerged and insects per grain, immature stage viability (%), instantaneous rate of growth (ri), insect dry weight (mg), grain weight loss (%) and egg-adult period. Results: When comparing all biological parameters, the cultivars BRS Tracuateua and BR 17 Gurgueia were harmful to C. maculatus. In the toxicity tests, the results showed that LC 30 and LC 50 of the chemical constituents ranged from 54.77 to 103.48 ppm and 60.99 to 125.18 ppm, respectively. In most of the biological parameters, LC 50 had adverse effects significantly higher than LC 30 and BR 17 Gurgueia treated were harmful to C. maculatus. Conclusions: Overall, the findings showed that BR 17 Gurgueia combined with eugenol and geraniol more significantly affected the biological parameters of C. maculatus than when associated with trans-anethole, reducing egg number, insects emerged and egg viability.

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Section: Methodsmentioning

confidence: 99%

Efficacy of bioactive compounds and their association with different cowpea cultivars against their major stored pest

Barbosa

Oliveira

Silva

et al. 2020

Pest Management Science

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“…Among the main crop pests, the cowpea weevil Callosobruchus maculatus (Fabr.) holds an elevated harmful potential, especially during the storage, generating qualitative and quantitative losses (Lima et al, 2001) The infestations by C. maculatus may begin in the field, were the females lay eggs in the surface of grains or seeds (Marsaro Júnior & Vilarinho, 2011). The larvae of this bruchid, when hatching, penetrate the grains and feed on the internal content.…”

Section: Introductionmentioning

confidence: 99%

“…Several essays were developed in the scope of identifying the cowpea genotypes resistant to the attack of C. maculatus (Carvalho et al, 2011, Lima et al, 2001 Sci., Bom Jesus, v.10, n.1, p.150-157, Jan./Mar. 2019 Vilarinho 2011, Cajazeira 2000, Melo et al, 2012 without, however, investigating its causes (Castro et al, 2013). In this manner, this study aimed to evaluate the chemical composition of four cowpea cultivars concerning the preference and the development of Callosobruchus maculatus.…”

Section: Introductionmentioning

confidence: 99%

Bromatological characteristics of the cowpea in the resistance to Callosobruchus maculatus

et al. 2019

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This work aimed to relate the bromatological characteristics of four cowpea cultivars to the preference and development of Callosobruchus maculatus. For this, oviposition preference, choice and no-choice tests were performed in four cowpea genotypes: Bico de Ouro, BRS Novaera, BRS Guariba and BRS Tumucumaque. In the no-choice test were determined: viability of eggs, duration of the immature stage, biological cycle, viability of the immature stage, population growth rate, weight per insect, biomass consumption and consumption per insect. As to the chemical composition, the seeds were characterized concerning the crude protein content, ash, neutral detergent fiber, acid detergent fiber and organic matter. In the evaluation, there were significant differences within the genotypes, except for the viability of eggs and consumption per insect. The BRS Novaera genotype presented antixenosis resistance to C. maculatus, whereas the Bico de Ouro, BRS Guariba and BRS Tumucumaque genotypes revealed to be susceptible. The chemical composition of the seeds affects the development of C. maculatus, and the crude protein and ash contents of the seeds without integument present a positive influence over the insect development.

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“…Infestation of C. maculatus can begin in the field, with females laying eggs on the surfaces of the beans. These insects are able to break the bean seed coat to reach the endosperm, from which they feed (MARSARO JÚNIOR; VILARINHO, 2011).…”

Section: Introductionmentioning

confidence: 99%

PHYSICAL AND BROMATOLOGICAL CHARACTERISTICS OF COWPEA VARIETIES PREFERRED BY Callosobruchus maculatus (COLEOPTERA: BRUCHIDAE) 1

et al. 2018

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-Cowpea is an herbaceous legume susceptible to several insects and diseases; and the beetle Callosobruchus maculatus is the main pest causing direct losses in the production of this crop. The objective of this work was to assess the physical and bromatological characteristics of beans of cowpea varieties (Bico-deOuro, BRS-Novaera, BRS-Guariba and BRS-Tumucumaque) preferred by C. maculatus. Adults of C. maculatus were obtained from a storage unit of cowpea beans. The physical and bromatological characteristics and attractiveness of cowpea beans to insects were evaluated in laboratory. The preferences for oviposition with no choice and attraction to cowpea beans by C. maculatus are not related to the high protein content or physical characteristics of the bean seed coat (thickness and fiber content), since the insects were more attracted to beans of the variety Bico-de-Ouro, which had low crude protein content, the thickest seed coat and high NDF content.Keywords: Vigna unguiculata. Seed coat. Anatomy. CARACTERÍSTICAS FÍSICAS E BROMATOLÓGICAS NA PREFERÊNCIA DE Callosobruchus maculatus (COLEOPTERA: BRUCHIDAE) A DIFERENTES VARIEDADES DE FEIJÃO-CAUPIRESUMO -O feijão-caupi é uma leguminosa, alvo de vários insetos e doenças, sendo a principal praga que causa perdas diretas o caruncho Callosobruchus maculatus. O objetivo deste trabalho foi relacionar as características físicas e bromatológicas das variedades de feijão-caupi Bico de Ouro, BRS Novaera, BRS Guariba e BRS Tumucumaque à preferência do caruncho C. maculatus. Os indivíduos adultos de C. maculatus foram obtidos em unidade armazenadora de sementes de feijão-caupi. Realizou-se em laboratório a caracterização física e bromatológica das sementes e, teste de atratividade dos insetos. A preferência de oviposição e atratividade de C. maculatus aos genótipos de feijão-caupi não estão associadas à atratividade por altos teores de proteína ou às características físicas do tegumento, neste caso espessura e teores de fibra, uma vez que os insetos tiveram maior atratividade pela variedade Bico de Ouro, que apresentou teores reduzidos de proteína bruta, maior espessura do tegumento e maiores teores de fibras em relação às demais variedades.Palavras-chave: Vigna unguiculata. Tegumento. Anatomia.

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Resistência de cultivares de feijão-caupi ao ataque de Callosobruchus maculatus (Coleoptera: Chrysomelidae: Bruchinae) em condições de armazenamento

Cited by 14 publications

References 6 publications

Efficacy of bioactive compounds and their association with different cowpea cultivars against their major stored pest

Efficacy of bioactive compounds and their association with different cowpea cultivars against their major stored pest

Bromatological characteristics of the cowpea in the resistance to Callosobruchus maculatus

PHYSICAL AND BROMATOLOGICAL CHARACTERISTICS OF COWPEA VARIETIES PREFERRED BY Callosobruchus maculatus (COLEOPTERA: BRUCHIDAE) 1

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