The Decline of Mortality of Cottonwood Clone Stoneville 124 on a Clay Soil

John K. Francis; Francis I. McCracken

doi:10.2737/SO-RN-318

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The Decline of Mortality of Cottonwood Clone Stoneville 124 on a Clay Soil

Informally Refereed

Authors:

John K. Francis, Francis I. McCracken

Year:

1985

Type:

Research Note

Station:

Southern Research Station

DOI:

https://doi.org/10.2737/SO-RN-318

Source:

Res. Note SO-318. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 3 p.

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Abstract

A decline sequence involving multiple factors was proposed as the cause of death and diminished crowns of 12-year-old cottonwood planted on a clay site. Stoneville clone 124, of which the plantation was formed, has proved to be poorly adapted to clay soils. Rates of death and weakened crowns were shown to be related to minor elevation differences within the plantation, the higher, drier areas being the most affected. Finally, several weak pathogens, including Phomopsis macrospora, apparently participated in weakening and ultimately killing the trees.

Keywords

Populus deltoides, Phomopsis macrospora, twig canker

Citation

Francis, John K.; McCracken, Francis I. 1985. The Decline of Mortality of Cottonwood Clone Stoneville 124 on a Clay Soil. Res. Note SO-318. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 3 p.