Vertical distribution of Crysodeixis includens (Lepidoptera: Noctuidae) in transgenic and conventional cotton cultivars

Authors

  • Marina Funichello Faculdade de Tecnologia de Presidente Prudente - FATEC
  • Diego Felisbino Fraga Faculdades Associadas de Uberaba - FAZU
  • Evandro Pereira Prado Faculdade de Ciências Agrárias e Tecnológicas - UNESP/Dracena
  • Oniel Jeremias Aguirre-Gil Faculdade de Ciências Agrárias e Veterinárias - UNESP/Jaboticabal
  • Antonio Carlos Busoli Faculdade de Ciências Agrárias e Veterinárias - UNESP/Jaboticabal

DOI:

https://doi.org/10.5965/223811711812019150

Keywords:

intra-plant distribution, Gossypium hirsutum, looper caterpillar

Abstract

The aim of this study was to evaluate the intra-plant distribution of Crysodeixis includens in conventional FM 993 and transgenic FM 975 WS (WideStrike), which express the toxic proteins Cry1Ac and Cry1F. The experiment was carried out in a split-plot design arranged under a complete block design with six treatments (three thirds x two plant leaf surface) and 40 repetitions. The plants were visually divided into three thirds (upper, middle and lower) and into adaxial and abaxial leaves, registering the number of caterpillars. C includens caterpillars were found at higher numbers in the non-Bt cultivar (FM 993), while in the transgenic cultivar FM 975 WS (WideStrike) were found only small caterpillars, and significantly fewer compared to their non-Bt isoline (FM 993). Caterpillars, regardless of size and cultivar, were most commonly found at the bottom and middle thirds of the plant canopy and on the abaxial leaf surface.

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References

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Published

2019-02-08

How to Cite

FUNICHELLO, Marina; FRAGA, Diego Felisbino; PRADO, Evandro Pereira; AGUIRRE-GIL, Oniel Jeremias; BUSOLI, Antonio Carlos. Vertical distribution of Crysodeixis includens (Lepidoptera: Noctuidae) in transgenic and conventional cotton cultivars. Revista de Ciências Agroveterinárias, Lages, v. 18, n. 1, p. 150–153, 2019. DOI: 10.5965/223811711812019150. Disponível em: https://periodicos.udesc.br/index.php/agroveterinaria/article/view/10275. Acesso em: 13 nov. 2024.

Issue

Vol. 18 No. 1 (2019)

Section

Research Note - Multisections and Related Areas

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