ATTRACTIVENESS STUDY OF FOUR COMPONENTS OF Spodoptera frugiperda SEX PHEROMONE

Authors

  • Igor Ferreira Pereira da Silva Universidade Federal de Alagoas
  • Adeildo Júnior de Oliveira Universidade Federal de Alagoas
  • Jakeline Maria dos Santos Universidade Federal de Alagoas
  • Isis Torres Souza Universidade Federal de Alagoas
  • Henrique Fonseca Goulart Universidade Federal de Alagoas
  • Antônio Euzébio Goulart Santana Universidade Federal de Alagoas

Keywords:

SYNTHESIS, FALL ARMYWORM, SEMIOCHEMICALS, BEHAVIORAL CONTROL

Abstract

The fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), is a pest that causes severe damage to agricultural production in various parts of the world, being considered a polyphagous and cosmopolitan pest. The use of pheromones in pest control has grown in recent years due to its high selectivity and low toxicity. Thus, this work aims ware to synthesize 4 compounds which belong of the S. frugiperda pheromonal blend, which were (Z)-7-dodecenyl acetate, (Z)-9-dodecenyl acetate, (Z)-9-tetradecenyl acetate and (Z)-11-hexadecenyl acetate and test them in the field against the commercially available pheromone in Brazil, the Bio Spodoptera (BioControle).The final products were prepared following a generic six-step reaction route, which included diol halogenation reactions, carbon-carbon coupling, stereoselective partial hydrogenation of alkynes, hydroxyl protection and deprotection, and alcohol acetylation. The compounds were characterized by NMR (H1and C13) and GC/MS. Two formulations were prepared with the synthesized compounds: the first (formulation 1) was composed of (Z)-7-dodecenyl, (Z)-9-tetradecenyl and (Z)-11-hexadecenyl acetates; and to the other (formulation 2), a fourth component, (Z)-9-dodecenyl acetate, was included. The formulated mixtures were incorporated in rubber septa by immersion for one hour. Four treatments (formulation 1, formulation 2, commercial pheromone and hexane as experimental control) were used for attractiveness evaluation, with six replications each, inserted in delta traps placed in corn crops for a period of 30 days. The synthesis of acetates showed good overall yields, proving to be efficient. 12% of the insects were captured with formulation 1, 38% with formulation 2 and 51% with commercial pheromone. There was no capture in traps containing septa incorporated with hexane. The average capture of S. frugiperda adult insects did not differ statistically among treatments by Tukey test at 5% probability.

References

AGROFIT. Relatório de pragas. Disponível em:

<http://agrofit.agricultura.gov.br/agrofit_cons/principal_agrofit_cons>.

BATISTA-PEREIRA, L. G. et al. Isolation, Identification, Synthesis, and Field

Evaluation of the Sex Pheromone of the Brazilian Population of Spodoptera

frugiperda. J Chem Ecol, v. 32, p. 1085–1099, mai. 2006. Disponível em:

<https://link.springer.com/content/pdf/10.1007%2Fs10886-006-9048-5.pdf>.

CRUZ, Ivan. A LAGARTA-DO-CARTUCHO NA CULTURA DO MILHO.

Embrapa - Circular Técnica, Sete Lagoas, n. 21, p. 1 -45, nov. 1995.

Disponível em:

<http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/475779>.

CRUZ, Ivan. MANEJO INTEGRADO DE PRAGAS DE MILHO COM ÊNFASE

PARA O CONTROLE BIOLÓGICO. EMBRAPA, Sete Lagoas, p. 48-92, dez.

Disponível em: <https://www.embrapa.br/busca-de-publicacoes/-

/publicacao/478707/manejo-integrado-de-pragas-de-milho-com-enfase-aocontrole-biologico>.

GOULART, H. F. et al. Feromônios: Uma Alternativa Verde para o Manejo

Integrado de Pragas. Revista Virtual Química, v. 7, n. 4, p. 1205-1224,

jul./ago. 2015. Disponível em:

<http://rvq.sbq.org.br/audiencia_pdf.aspaid2=187&nomeArquivo=v7n4a12.pdf>.

WITZGALL, Peter; KIRSCH, Philipp; CORK, Alan. Sex Pheromones and Their Impact on Pest Management. Journal of Chemical Ecology, v. 36, n. 1, p. 80– 100, ./jan. 2010. Disponível em:

<https://link.springer.com/article/10.1007%2Fs10886-009-9737-y>.

Published

2019-10-20

How to Cite

Silva, I. F. P. da, Oliveira, A. J. de, Santos, J. M. dos, Souza, I. T., Goulart, H. F., & Santana, A. E. G. (2019). ATTRACTIVENESS STUDY OF FOUR COMPONENTS OF Spodoptera frugiperda SEX PHEROMONE. Caderno Verde De Agroecologia E Desenvolvimento Sustentável, 9(5), b–103. Retrieved from https://gvaa.com.br/revista/index.php/CVADS/article/view/7273

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