The European fruit lecanium, <i>Lecanium tiliae</i> (L.) (Homoptera: Coccidae), in southwestern British Columbia

Authors

  • Amos Y. Rubin Pestology Centre Department of Biological Sciences Simon Fraser University Burnaby, B.C.
  • B. P. Beirne Pestology Centre Department of Biological Sciences Simon Fraser University Burnaby, B.C.

Keywords:

European fruit lecanium, <i>Lecanium tiliae</i>, Homoptera, Coccidae

Abstract

<i>Lecanium tiliae</i> normally has one annual generation in southwestern British Columbia. There was a partial second in a year following a mild winter. The heaviest infestations were on horse chestnut, Japanese plum, hawthorn, and maple, in that order. Hawthorn was damaged. The proportion of males tended to be higher in high than in low populations, and to decrease with increasing altitude. Severe winter cold caused marked population decreases and cold weather in June noticeable decreases. Natural enemies found in 1969-72 are listed.

References

Glendenning, R. 1925. The lecanium scale outbreak in Vancouver, B.C. Proc. Ent. Soc. Br. Columb. 22:21-26.

Glendenning, R. 1931. The lecanium scale, an insect affecting fruit and shade trees on the Pacific coast. Canada Dept. Agric. Circ. No. 77. 4 pp.

Glendenning, R. 1933. A successful parasite introduction into British Columbia. Can. Ent. 65:169-171.

Glendenning, R. 1934. On the control of Eulecanium coryli (L.) in British Columbia by the parasite Blastothrix sericea (Dalm.). Proc. Fifth pac. Sci. Cong., Canada 1933. 5:3543-3545.

Graham, K. and M.L. Prebble. 1953. Studies on the lecanium scale, Eulecanium coryli (L.), and its parasite Blastothrix sericea (Dalm.), in British Columbia. Can. Ent. 8:153-181.

Krassilstchik, I.M. 1915. (Report on the work of the Bio-Entomological Station (of Bessarabia) during 1914. Govt. of Bessarabia, Kishinev, 1915, 49 pp. In Russian) Abstract in Rev. Appl. Ent. 3:395-398.

Lyne, W.H. 1927. Lecanium coryli. Spec. Publ. Calif. Dept. Agric. No. 73, p. 35.

Rubin, A. and B.P. Beirne. 1975. Natural enemies of the European fruit lecanium, Lecanium tiliae (L.) (Homoptera: Coccidae), in British Columbia. Can. Ent. 107:337-342.

Thiem, H. 1932. Pleisozontie als Arterhalt ungsprinz ip. Jenaische Z. naturw. 67:488-492.

Downloads

Published

2019-08-28