Efecto de las poblaciones de Alabama argillacea (Hübner) (Lepidoptera: Noctuidae) en cultivos de algodón a dos distanciamientos / Effect of the populations of Alabama argillacea (Hübner) (Lepidoptera: Noctuidae) on cotton crop at two sowing distances
Neotrop. entomol
;
40(2): 251-257, Mar.-Apr. 2011. graf, tab
Artigo
em Espanhol
| LILACS
| ID: lil-586664
ABSTRACT
The objective of this research was to evaluate the incidence of damage by the leafworm Alabama argillacea (Hübner) on yields of cotton grown under rows spaced 0.38 m and 0.76 m at the irrigation area of Santiago del Estero, Argentina. The period evaluated was extended from first flower to first open boll. Treatments were T1 - without control of larvae, T2 - with control of larvae, T3 - control since first flower to the end of effective blooming, and T4 - with larval control since the end of effective blooming to first open boll. The effect of injuries on the crop was evaluated trough boll cotton yield. Larvae were sampled in a weekly basis and insects were present from the first flower until harvest. Populations of A. argillacea decreased crop yields in the two distances tested, by decreasing the weight or number of open bolls.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Gossypium
/
Lepidópteros
Limite:
Animais
Idioma:
Espanhol
Revista:
Neotrop. entomol
Assunto da revista:
Biologia
/
ZOOLOGIA
Ano de publicação:
2011
Tipo de documento:
Artigo
País de afiliação:
Argentina
Instituição/País de afiliação:
Univ Nacional de Santiago del Estero/AR
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