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Using Satellite Data to Map False Broomweed (Ericameria austrotexana) Infestations on South Texas Rangelands

Published online by Cambridge University Press:  12 June 2017

Gerald L. Anderson ,
James H. Everitt ,
Arthur J. Richardson  and
David E. Escobar
Gerald L. Anderson
Affiliation:
Remote Sensing Res. Unit, Agric. Res. Serv., U.S. Dep. Agric., 2413 e. Hwy. 83, Weslaco, TX 78596
James H. Everitt
Affiliation:
Remote Sensing Res. Unit, Agric. Res. Serv., U.S. Dep. Agric., 2413 e. Hwy. 83, Weslaco, TX 78596
Arthur J. Richardson
Affiliation:
Remote Sensing Res. Unit, Agric. Res. Serv., U.S. Dep. Agric., 2413 e. Hwy. 83, Weslaco, TX 78596
David E. Escobar
Affiliation:
Remote Sensing Res. Unit, Agric. Res. Serv., U.S. Dep. Agric., 2413 e. Hwy. 83, Weslaco, TX 78596
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Abstract

False broomweed is a troublesome weed on south Texas rangelands. The plant suppresses the growth of desirable herbaceous plant species and is unpalatable to livestock and wildlife. The objectives of this study were to evaluate multispectral satellite data for automated detection, classification, and mapping of false broomweed infestations. Determining the optimum phenological conditions for false broomweed detection was a major goal. Results indicate that satellite data can be used to detect major stands of this shrub and map the relative extent of infested areas. The best classification was obtained when the foliage of the shrub was fully developed and during periods of low herbaceous biomass production. Limited ground or aerial surveying will be needed to produce more exact estimates of the extent of false broomweed stands; however, these efforts can be focused on areas identified by satellite classification.

Keywords

False broomweed, Ericameria austrotexana M. Johnst., # EIMAUKappaclassificationremote sensing
Type
Research
Information
Weed Technology , Volume 7 , Issue 4 , December 1993 , pp. 865 - 871
Copyright
Copyright © 1994 by the Weed Science Society of America 

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