Some influences of area and pest management on apple mite populations in the Okanagan Valley of British Columbia

Authors

  • Nello P. D. Angerilli Research Station Agriculture Canada Summerland, B.C.
  • Lynn Brochu Research Station Agriculture Canada Summerland, B.C.

Keywords:

apple mite

Abstract

Biweekly leaf samples were taken from commercial apple orchards in four main growing areas, from north to south of the Okanagan Valley, each about 70 km apart, during the full growing season of 1983. Both phytophagous and predacious mite distribution and abundance were influenced by the area and four management practices. Unsprayed orchards had few mites, whereas regularly sprayed orchards tended to have larger mite populations, the species composition and abundance of which varied with area. The numbers of some species of phytophagous mites appeared to be related to the species and abundance of predacious mites present in a given orchard.

References

Anderson, N.H. and C.V. Morgan . 1958. The role of Typhlodromus spp. (Acarina: Phytoseiidae) in British Columbia apple orchards. Proc. 10th Int. Cong. Ent. 4:659-665.

Anderson, N. H., C.Y. Morgan, and D.A. Chant. 1958. Notes on occurrence of Tvphlodromus and Phytoseius spp. in southern British Columbia (Acarina: Phytoseiinae). Can. Ent. 90:275-279.

Downing, R.S. and T.K. Moilliet. 1971. Occurrence of phytoseiid mites (Acarina: Phytoseiidae) in apple orchards in south central British Columbia. J. Ent. Soc. B.C. 68:33-36.

Downing, R.S. and T.K. Moilliet. 1972. Replacement of Typhlodromus occidentalis by T. caudiglans and T. pyri (Acarina: Phytoseiidae) after cessation of sprays on apple trees. Can. Ent. 104:937-940.

Downing, R.S. and J. Arrand. 1976. Integrated control of orchard mites on apple in British Columbia. Can. Ent. 108:77-81.

Morgan, C.Y., D.A. Chant, N.H. Anderson, and G.L. Ayre. 1955. Methods for estimating orchard mite populations, especially with the mite-brushing machine. Can. Ent. 87:189-200.

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Published

2019-09-25

Issue

Vol. 84 (1987): Journal of the Entomological Society of British Columbia

Section

Articles

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