Reduced Parasitism of Diaphorina citri (Hemiptera: Liviidae) by Tamarixia Radiata (Hymenoptera: Eulophidae) at Increasing Parasitoid:Host Ratios

Tamarixia radiata females parasitized fewer host Diaphorina citri fourth and fifth instar nymphs as the number of females relative to hosts increased. Releasing additional females above an optimum number increased host feeding and competition for nymphs suitable for oviposition. Super-parasitism by...

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Bibliographic Details
Published in:The Florida entomologist 2019-04, Vol.102 (1), p.246-248
Main Authors: Razmjou, Jabraeil, Kerr, Christopher R, Leppla, Norman C
Format: Article
Language:English
Subjects:
Adults
Agriculture
Asian citrus psyllid
biological control
Citrus fruits
Competition
control biológico
cría de parasitoides
Diaphorina citri
Entomology
Females
Host-parasite interactions
Individual rearing
Instars
Mass rearing
Nymphs
Overpopulation
Oviposition
Parasitism
parasitoid rearing
Psílido asiático de los cítricos
Ratios
SCIENTIFIC NOTES
super-parasitism
súper-parasitismo
Tamarixia radiata
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Summary:Tamarixia radiata females parasitized fewer host Diaphorina citri fourth and fifth instar nymphs as the number of females relative to hosts increased. Releasing additional females above an optimum number increased host feeding and competition for nymphs suitable for oviposition. Super-parasitism by T. radiata, while rare, likely indicates overpopulation, and specifically the loss of production in a mass-rearing system.
ISSN:0015-4040
1938-5102
DOI:10.1653/024.102.0143