Seasonal abundance of primary parasitoids and hyperparasitoids associated with Acyrthosiphon pisum (Harris) and Acyrthosiphon kondoi Shinji (Homoptera: Aphididae) on alfalfa

Seasonal abundance of primary parasitoids and hyperparasitoids associated with Acyrthosiphon spp. was studied in an alfalfa field in 2000. Two species of primary parasitoids were recorded: Aphidius ervi and Praon barbatum. Mean parasitism by A. ervi and P barbatu,n peaked at 3.5% on 10 July and 13.0...

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Veröffentlicht in:	Japanese Journal of Applied Entomology and Zoology 2002, Vol.46(2), pp.96-98
Hauptverfasser:	Senoo, N. (Obihiro Univ. of Agriculture and Veterinary Medicine, Hokkaido (Japan)), Ochiai, Y, Nakashima, Y
Format:	Artikel
Sprache:	jpn
Schlagworte:	ACYRTHOSIPHON Acyrthosiphon spp Aphidius ervi Asaphes suspensus Dendrocerus carpenteri GRASSLANDS HYPERPARASITISM MEDICAGO SATIVA PARASITOIDS POPULATION DENSITY Praon barbatum SEASONAL VARIATION
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