First report of the blue alfalfa aphid (Homoptera: Aphididae) in Maryland: Natural enemies and biotype

First detection of the blue alfalfa aphid, Acyrthosiphon kondoi Shinji, in Maryland is reported, including information on natural enemies and aphid biotype. Early reports of aphid outbreaks in Maryland were associated with the first detection of the blue alfalfa aphid during 1992. A number of natura...

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Bibliographic Details
Published in:Journal of the Kansas Entomological Society 1994, Vol.67 (1), p.129-132
Main Authors: Lamp, William O., Liewehr, David, Fuentes, Clara, Dively, Galen P.
Format: Article
Language:English
Subjects:
Acyrthosiphon kondoi
Alfalfa
Aphididae
Density
depredadores
Entomology
Homoptera
Hyperparasites
Inoculation
maryland
medicago sativa
Natural enemies
parasitoide
parasitoides
Parasitoids
Peas
Plant development
Plants
predateur
predators
Short Communications
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Summary:First detection of the blue alfalfa aphid, Acyrthosiphon kondoi Shinji, in Maryland is reported, including information on natural enemies and aphid biotype. Early reports of aphid outbreaks in Maryland were associated with the first detection of the blue alfalfa aphid during 1992. A number of natural enemies associated with pea aphid were observed attacking the blue alfalfa aphid. A biotype test indicated that the entries 'OK 51' and 'CUF-101' are tolerant to the aphid population, while 'Arc' and 'PA-1' are not. 'WL320', a common cultivar adapted for the mid-Atlantic states, was intermediate in tolerance.
ISSN:0022-8567
1937-2353