interspecific competition between metagonystilum minense (diptera: tachinidae) and cotesia flavipes (hymenotera: braconidae) parasitosis of sugarcane borers (diatraea spp., lepidoptera:pyralidae)

interspecific competition between metagonystilum minense (diptera: tachinidae) and cotesia flavipes (hymenotera: braconidae) parasitosis of sugarcane borers (diatraea spp., lepidoptera:pyralidae)

;Enrique H. Weir L.;Luis Sagarzazu
science journal of university of zakho 1998 Vol. 46 pp. 1135-1139
137
l.1998revistainterspecific

Abstract

We evaluated the effect of interspecific competition between M. minense and C. flavipes larvae on survival in both species and on the growth of M. minense. Interspecific competition was evaluated by the inoculation of M. minense larvae (1 or 2 per host larvae: D. sacharalis) 1 to 5 days before or 3 to 8 days after the inoculation of C. flavipes eggs (one inoculation = 45 - 50 eggs). All experiments were done with ten replicas. We found a significant effect of interspecific competition on larval and pupal survival in both parasitoids and body weight in M. minense. M. minense dominated over C. flavipes, except when M. minense was inoculated 5 or more days after C. flavipes.
Evaluamos el efecto de la competencia interespecífica entre larvas de M. minense y C. flavipes en la supervivencia de la progenie de ambas especies y en el crecimiento de M. minense. La competencia interespecífica fue evaluada mediante la inoculación de larvas de M. minense (1 o 2 por larva del hospedador: D. saccharalis) 1 a 5 días antes o 3 a 8 días después de la inoculación de huevos de C. flavipes (una inoculación = 45 a 50 huevos). Se hicieron diez repeticiones de todos los experimentos. Encontramos un efecto significativo de competencia en la supervivencia larval y pupal en ambas especies parasitoides y en el peso corporal de M. minense. M. minense predominó sobre C. flavipes, excepto cuando M. minense fue inoculado 5 o mas días después de C. flavipes.

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ID: 196562
Ref Key: l.1998revistainterspecific
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