Pesquisa Agropecuária Brasileira (2004) 39, 1077-1081

Fausto da Costa Matos Neto, Ivan Cruz, José Cola Zanuncio, Carlos Henrique Osório Silva and Marcelo Coutinho Picanço (2004)
Parasitism by Campoletis flavicincta on Spodoptera frugiperda in corn
Pesquisa Agropecuária Brasileira 39 (11), 1077-1081
Abstract: Parasitism by Campoletis flavicincta (Ashmead) (Hymenoptera: Ichneumonidae) on Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) and consequent reduction of production losses were evaluated on caged corn plants in the field. Treatments consisted of plots infested with 0 (control), 15 and 30 pairs of C. flavicincta with egg masses per cage and plot infested without cage and liberation of the parasitoid. Parasitoid release was done when S. frugiperda larvae were three-day-old. Fifty corn plants (40%) per plot were collected seven days after infestation and S. frugiperda larvae present were reared in glass cups on an artificial diet. Number of S. frugiperda larvae was reduced by C. flavicincta but mortality of the pest and parasitoid sex ratio in laboratory were similar among treatments. Total progeny and female production from collected larvae were similar among densities of released parasitoid. Parasitism rate was higher on 30 than on 15 pairs of C. flavicincta. Damage on corn plants at seven and 14 days after S. frugiperda infestation had similar grades at 0, 15 or 30 C. flavicincta pairs and higher values than the plots without cage. Damage by S. frugiperda was lower at 30 C. flavicincta pairs after 21 days of infestation. Final stand, stand reduction by plant death and corn productivity were similar among treatments.
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Database assignments for author(s): José Cola Zanuncio, Ivan Cruz

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
damage/losses/economics
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

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