Summary
Potato aphids,Macrosiphum solanifolii Ashm. andMyzus persicae Sulz. have frequently infested Long Island potato plantings. The use of nicotine spray and nicotine vapor has given excellent control of potato aphids which has been reflected in increased yields of tubers.
For a number of years observations have shown that the potato aphid populations at the peak of infestation are larger on bordeauxsprayed plants than on unsprayed plants. Furthermore bordeaux spraying has in many instances, decreased yields during non-blight years. The increased aphid populations on bordeaux-sprayed plants may account for these decreases in yield.
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Literature cited
Dickison, Wm. 1937. Potato spraying and dusting experiments in Nassau County, Long Island, Cornell Univ. (Thesis).
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Wilson, J. D., and H. A. Runnels. 1934. Influence of bordeaux mixture and oil emulsion on water requirement. Ohio Agr. Exp. Sta. Bi-monthly Bul. 19: 21–28.
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Nottingham, J.O., Rawlins, W.A. The control of potato aphids on long island. American Potato Journal 18, 305–311 (1941). https://doi.org/10.1007/BF02884967
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DOI: https://doi.org/10.1007/BF02884967