Measurement of the ovipositional potential of potato leafhopper, Empoasca fabae (Homoptera: Cicadellidae): a comparison of feral and culture populations

The ovipositional potential of two populations of the potato leafhopper, Empoasca fabae (Harris) (Homoptera: Cicadellidae), was measured by counting mature oocytes and by counting eggs deposited on four different ovipositional substrates. Oviposition by the feral population was more discriminating t...

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Bibliographic Details
Published in:Journal of the Kansas Entomological Society 1990-07, Vol.63 (3), p.420-426
Main Authors: Ranne, E.L. (University of Maryland, Colleg Park, MD), Lamp, W.O
Format: Article
Language:English
Subjects:
Cicadellidae
EMPOASCA FABAE
EVOLUCION DE LA POBLACION
EVOLUTION DE LA POPULATION
Homoptera
MEDICAGO SATIVA
OOCYTES
OVA
OVIPOSICION
OVIPOSITION
OVULE
OVULO
PONTE
POPULATION CHANGE
VICIA FABA
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Summary:The ovipositional potential of two populations of the potato leafhopper, Empoasca fabae (Harris) (Homoptera: Cicadellidae), was measured by counting mature oocytes and by counting eggs deposited on four different ovipositional substrates. Oviposition by the feral population was more discriminating than the culture population, with the feral population depositing 72% fewer eggs in broad bean than in alfalfa stems, and 24% fewer eggs in excised than uncut stems. Egg deposition among substrates did not differ statistically for the culture population, and mature oocyte counts after oviposition did not differ for either population. Mature oocyte counts were poor predictors of the ovipositional potential of the leafhopper.
ISSN:0022-8567
1937-2353