Efficacy of insecticides against geometrid larvae, <i>Operophtera</i> spp., on southern Vancouver Island, British Columbia

Authors

  • N. V. Tonks Saanichton Research Station Agriculture Canada Sidney, B.C.
  • P. R. Everson Saanichton Research Station Agriculture Canada Sidney, B.C.
  • T. L. Theaker Saanichton Research Station Agriculture Canada Sidney, B.C.

Keywords:

<i>Operophtera</i> spp.

Abstract

Permethrin, acephate, diazinon, malathion, endosulfan , methoxychlor , Imidan, naled and a spray containing surfactant only were the most effective treatments for control of winter moth, <i>Operophtera brumata</i> (L. ), and Bruce spanworm, <i>O. bruceata</i> (Hulst), on apple in the tight cluster bud stage. Resmethrin, trichlorfon, and Dipel and Thuricide formulations of <i>Bacillus thuringiensis</i> were less effective. The growth disruptor, Dimilin, provided good control at the pink bud stage. At this same stage, sprays with surfactant only were no better than untreated controls.

References

Cuming, F.G. 1961. The distribution, life history and economic importance of the winter moth, Operophtera brumata (L.) (Lepidoptera: Geometridae), in Nova Scotia. Can. Ent. 93:135-142.

Eidt, D.C. and D.G. Embree. 1968. Distinguishing larvae and pupae of the winter moth, Operophtera brumata, and the Bruce spanworm, O. bruceata (Lepidoptera: Geometridae). Can. Ent. 100:536-539.

Gillespie, David R., Thelma Finlayson, Norman V. Tonks, and Douglas A. Ross. 1978. Occurrence of the winter moth, Operophtera brumata (Lepidoptera: Geometridae). on southern Vancouver Island, British Columbia. Can. Ent. 110:223-224.

McMullen, R.D. 1973. The occurrence and control of the Bruce spanworm in the Okanagan Valley. 1972. J. Ent. Soc. B.C. 70:8-10.

Pree, D.J. 1976. Effects of two insect growth disruptors, PH 6038 and PH 6040, on the winter moth. Operophtera brumata (Lepidoptera: Geometridae). Can. Ent. 108:49-52.

Sanford, K.H. and H.J. Herbert. 1966. The influence of spray programs on the fauna of apple orchards in Nova Scotia. XX. Chemical controls for winter moth, Operophtera brumata (L.), and their effects on phytophagous mite and predator populations. Can. Ent. 98:991-999.

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Published

2019-08-28

Issue

Vol. 75 (1978): Journal of the Entomological Society of British Columbia

Section

Articles

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