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B. Ekbom | 1994Arthropod predators of the pea aphid (Acyrtbosiphon pisum Harr.) were collected using pitfall traps in peas (Pisum sativum L.), clover (Trifolium pratense L.) and alfalfa (Medicago sativa L.). Aphid densities were monitored using a vacuum suctio[...]
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R. Bommarco ; B. Ekbom | 1995This study was designed to investigate the possibility of predicting the timing and level of infestation of the pea aphid, Acyrthosiphon pisum (Harris), a pest of economic importance in peas. The source of infestation is perennial legumes. We fo[...]
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R. Bommarco ; B. Ekbom | 19961. Seasonal population growth rates for the pea aphid, Acyrthosiphon pisum Harris, were determined in three different host plant habitats; alfalfa, Medicago sativa (L.), clover, Trifolium pratense (L.), and peas, Pisum sativum (L.); over four ye[...]
