Brown-spot resistance in natural stands of longleaf pine seedlings

William D. Boyer

Treesearch

Brown-spot resistance in natural stands of longleaf pine seedlings

Informally Refereed

Authors:

William D. Boyer

Year:

1972

Type:

Research Note

Station:

Southern Research Station

Source:

Res. Note SO-142. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p

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Abstract

An average of 10 percent of longleaf pine (Pinus palustris Mill.) seedlings in several natural populations remained nearly free of brown-spot needle blight (Scirrhia acicola (Dearn.) Siggers) year after year, despite high injection levels in the population as a whole. In one study, these individuals averaged 8 feet taller at age 24 than surviving trees that were less resistant to the disease.

Citation

Boyer, William D. 1972. Brown-spot resistance in natural stands of longleaf pine seedlings. Res. Note SO-142. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p