Acessibilidade / Reportar erro

INFLUENCE OF COTTON GENOTYPES ON DEVELOPMENT AND PREDATORY CAPACITY OF PODISUS NIGRISPINUS (DALLAS, 1851) NYMPHS

ABSTRACT

The development and predatory capacity of Podisus nigrispinus (Dallas, 1851) nymphs fed on Alabama argillacea (Hübner, 1818) larvae reared on cotton genotypes CNPA Precoce 1, CNPA 9211-31, CNPA 9211-41 e GL2 GL3 were studied. The duration and survival of instars of P. nigrispinus nymphs were not influencied by cotton genotypes used to feed for the prey A. argillacea. During the nymphal phase of P. nigrispinus, the highest consumption of A. argillacea larvae, 16.5 and 15.9 was observed when nymphs fed on larvae reared on, respectivelly, CNPA 9211-41 and CNPA 9211-31 genotypes. It was observed compatibility between use of plant resistance and biological control since P. nigrispinus showed the highest consumption rate when was fed on A. argillacea larvae reared on resistant cotton genotypes leaves.

KEY WORDS:
Cotton leafworm; predator; plant resistance; biological control; tritrophic interaction.

Instituto Biológico Av. Conselheiro Rodrigues Alves, 1252 - Vila Mariana - São Paulo - SP, 04014-002 - São Paulo - SP - Brazil
E-mail: arquivos@biologico.sp.gov.br