Environmental Entomology (1992) 21, 214-219

Toni M. Riggin, David J. Isenhour and Karl E. Espelie (1992)
Effect on Cotesia marginiventris (Hymenoptera: Braconidae) when rearing host fall armyworm (Lepidoptera: Noctuidae) on meridic diet containing foliage from resistant or susceptible corn genotypes
Environmental Entomology 21 (1), 214-219
Abstract: Larval weights for fall armyworm, Spodoptera frugiperda (J.E. Smith), were not significantly affected at two constant temperature regimes (24 and 27°C) when larvae parasitized by Cotesia marginiventris (Cresson) were reared on resistant versus susceptible corn genotypes. Results indicated that the third trophic level was not adversely affected by fall armyworm feeding on pinto bean diet containing resistant versus susceptible corn genotypes. Developmental times for C. marginiventris were shorter when the parasitoids were maintained at the higher temperature. Time from egg to cocoon formation at 24°C was significantly less when hosts were fed diet containing foliage from the susceptible genotype 'Cacahuacintle X'. Parasitoid longevity was increased at the higher temperature regime and was not affected by the corn genotype.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
resistance/tolerance/defence of host
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Spodoptera frugiperda	Maize/corn (Zea mays)
Cotesia marginiventris (parasitoid)	Spodoptera frugiperda	Maize/corn (Zea mays)