Mammoth lakes revisited—50 years after a Douglas-fir tussock moth outbreak.

Boyd E. Wickman; G. Lynn Starr

doi:10.2737/PNW-RN-498

Treesearch

Mammoth lakes revisited—50 years after a Douglas-fir tussock moth outbreak.

Informally Refereed

Authors:

Boyd E. Wickman, G. Lynn Starr

Year:

1990

Type:

Research Note

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.2737/PNW-RN-498

Source:

Res. Note. PNW-RN-498. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 8 p

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Abstract

For five decades after an outbreak of Douglas-fir tussock moth (Orgyia pseudotsugata (McDunnough)), radial growth of defoliated white fir trees (Abies concolor (Gord. & Glend.) Lindl.), was significantly greater than that of nondefoliated host trees nearby. The increased growth probably was due to the thinning effect of tree mortality and increased nutrient availability.

Keywords

Douglas-fir tussock moth, white fir, tree growth

Citation

Wickman, Boyd E.; Starr, G. Lynn. 1990. Mammoth lakes revisited—50 years after a Douglas-fir tussock moth outbreak. Res. Note. PNW-RN-498. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 8 p