The European winter moth as a pest of filberts: Damage and chemical control

Authors

  • M. T. AliNiazee Department of Entomology Oregon State University Corvallis, OR

Keywords:

European winter moth, <i>Operophtera brumata</i>, Lepidoptera, Geometridae, <i>Bacillus thuringiensis</i>, filbert, hazelnut

Abstract

Different chemicals and two spray timing dates were evaluated for control of the European winter moth, <i>Operophtera brumata</i> (L.) in filbert orchards of Oregon. Data showed that endosulfan, carbaryl, phosalone, diazinon and fenvalerate were effective against this pest. A <i>Bacillus thuringiensis</i> product, Thuricide HPC was found to be ineffective. The timing of the spray treatment was critical. Sprays applied at 90 - 95% egg hatch (April) were much more effective than the sprays applied at 50 - 60% egg hatch (March). The spray timing seemed to be less critical for fenvalerate treatment, which was equally effective at both treatment dates.

The damage caused by <i>O. brumata</i> to filbert trees is described.

References

AliNiazee, M.T. 1981. The oblique-banded leafroller and the winter moth: two new pests of Oregon filberts. Proc. Oreg. Wash. and B.C. Nut Grow. Soc. 66:98-100.

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Ferguson, D.C. 1978. Pests not known to occur in the United States of limited distribution. Winter moth, Operophtera brumata (L.) (Lepidoptera: Geometridae). U.S. Dept. Agric. Coop. Pl. Pest Rep. 3:687-694.

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Published

2019-09-25

Issue

Vol. 83 (1986): Journal of the Entomological Society of British Columbia

Section

Articles

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