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From 1942 to 1969, concurrent studies were made to identify and assess the importance of biological agents affecting abundance of the potato-infesting species of aphids in northeastern Maine. These authors report the results of studies relating to arthropod predators of aphids on the potato crop, principally from 1952 through 1969.
Life Sciences and Agriculture Experiment Station
Shands, W.A., G.W. Simpson, H.E. Wave, and C.C. Gordon. 1972. Importance of arthropod predators in controlling aphids on potatoes in northeastern Maine. Life Sciences and Agriculture Experiment Station Technical Bulletin 54.