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Life-History of the European Red Mite1

  • Benoit Parent (a1) and A. A. Beaulieu (a1)


Since 1945, the European red mite, Metatetranychus ulmi (Koch) [=Paratetranychus pilosus (C. & F.)], has been one of the major pests in apple orchards in southwestern Quebec. Though it had been noted by Petch on fruit trees at Ville LaSalle, Que., in 1930 and at Lac Mégantic, Que., in 1931 it was not reported as causing serious injury to apple trees before July of 1945, when Beaulieu (1948) reported that it was responsible for the first important damage in a few orchards at Rougemont, Que. By 1946, infestations were general in the apple growing areas of southwestern Quebec and occurred as far east as the Quebec City district.



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Beaulieu, A. A. 1948. Résultats préliminaires des expériences entreprises en 1948 sur le tétranyque du pommier (mite rouge). 55è Rapp. Ann. Soc. Pom. Québec, pp. 5257.
Beaulieu, A. A., and Parent, B.. (1953) Résultats préliminaires de deux saisons d'études (1948–1949) sur le cycle vital du tétranyque du pommier, Metatetranychus ulmi (Koch) = Paratetranychus pilosus (C. & F.). 32nd and 33rd Repts. Québec Soc. Prot. Plants, 1950–51, pp. 122126.
Blair, Catherine A., and Groves, Joan R.. 1952. Biology of the fruit tree red spider mite, Metatetrany chus ulmi (Koch) in southeast England. Hort. Sci. 27: 1443.
Cagle, L. R. 1946. Life-history of the European red mite. Virginia Agr. Expt. Sta. Tech. Bull. 98.
Garman, P. 1923. The European red mite in Connecticut apple orchards. Connecticut Agr. Expt. Sta. (New Haven) Bull. 252.
Gilliatt, F. C. 1935. The European red mite, Paratetranychus pilosus (C. & F.) in Nova Scotia. Canadian J. Res., D, 13: 117.
Groves, Joan R. 1951. A synopsis of the world literature on the fruit tree red spider mite, Metatetranychus ulmi (C.L. Koch, 1835) and its predators. Commonwealth Institute of Entomology, 41 Queen's Gate, London, S.W. 7.
Newcomer, E. J., and Yothers, J. A.. 1929. Biology of the European red mite in Pacific northwest. U.S. Dept. Agr. Tech. Bull. 89.
Ross, W. A., and Robinson, W.. 1922. Notes on the plum spider mite or European red mite. 52nd Ann. Rept. Ent. Soc. Ontario, 1921, pp. 3342.

Life-History of the European Red Mite1

  • Benoit Parent (a1) and A. A. Beaulieu (a1)


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