Tree girdling treatments for timber stand improvement in Bolivian tropical forests

Pariona W., . and Fredericksen T. S., . and Licona J. C., . Tree girdling treatments for timber stand improvement in Bolivian tropical forests. pp. 583-592. ISSN 0128-1283

The efficacy and costs of three tree girdling treatments to remove non-commercial trees were evaluated in both dry and humid Bolivian tropical forests that were recently harvested. The treatments included chainsaw girdling only and chainsaw girdling immediately followed by application of two different herbicide solutions (glyphosate and 2 4-D) to the girdled surfaces. Two years following the application girdling 2 4-D killed more than 75 of the crown on 75 of treated trees while girdling glyphosate and girdling only treatments killed 61 and 14 respectively. No significant differences in treatment efficacy were observed between forest types although there were differences between tree species in response to treatments. Glyphosate killed trees more slowly than 2 4-D. Treatment costs were 0.16 / tree for girdling 2 4-D 0.32 / tree for girdling glyphosate and 0.09 / tree for girdling only.

Full text available from: Official URL: http://www.frim.gov.my/v1/JTFSOnline/jtfs/v15n4/58...

Abstract

The efficacy and costs of three tree girdling treatments to remove non-commercial trees were evaluated in both dry and humid Bolivian tropical forests that were recently harvested. The treatments included chainsaw girdling only and chainsaw girdling immediately followed by application of two different herbicide solutions (glyphosate and 2 4-D) to the girdled surfaces. Two years following the application girdling 2 4-D killed more than 75 of the crown on 75 of treated trees while girdling glyphosate and girdling only treatments killed 61 and 14 respectively. No significant differences in treatment efficacy were observed between forest types although there were differences between tree species in response to treatments. Glyphosate killed trees more slowly than 2 4-D. Treatment costs were 0.16 / tree for girdling 2 4-D 0.32 / tree for girdling glyphosate and 0.09 / tree for girdling only.

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Item Type:	Article
AGROVOC Term:	Girdling
AGROVOC Term:	Timber
AGROVOC Term:	Stand improvement
AGROVOC Term:	Tropical forests
AGROVOC Term:	Humidity
AGROVOC Term:	Chainsaws
AGROVOC Term:	Herbicides
AGROVOC Term:	Glyphosate
AGROVOC Term:	Forest management
AGROVOC Term:	Liberation felling
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:27
URI:	http://webagris.upm.edu.my/id/eprint/22335

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