Lygus hesperus as an agent of apical bud abortion in Douglas-fir nurseries in western Oregon

Authors

T. D. Schowalter, Oregon State University
D. L. Overhulser, Weyerhaeuser Company
A. Kanaskie, Weyerhaeuser Company
J. D. Stein, USDA Forest Service
J. Sexton, Oregon State University

Document Type

Article

Publication Date

3-1-1986

Abstract

Causes of apical bud abortion in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) were examined in two nurseries in western Oregon. Insect and damage surveys indicated that leafhoppers and Lygus hesperus Knight increased in abundance during August and September, coincident with damage accumulation. Caging studies confirmed that L. hesperus can cause bud abortion and indicated that nymphs of this insect could complete development to maturity on Douglas-fir seedlings. © 1986 Martinus Nijhoff Publishers.

Publication Source (Journal or Book title)

New Forests

First Page

5

Last Page

15

Recommended Citation

Schowalter, T., Overhulser, D., Kanaskie, A., Stein, J., & Sexton, J. (1986). Lygus hesperus as an agent of apical bud abortion in Douglas-fir nurseries in western Oregon. New Forests, 1 (1), 5-15. https://doi.org/10.1007/BF00028117