Novel Encapsulated Herbicide Delivery Mechanism: Its Efficacy in Mimosa Bush (<i>Vachellia farnesiana</i>) Control

Mimosa bush (<i>Vachellia farnesiana</i>) is an invasive woody weed widely distributed in Australia. While it can be controlled using several mechanical and chemical techniques, this study evaluated a novel herbicide delivery mechanism that minimizes the risk of spray drift and potential...

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Autores principales:	Amelia A. Limbongan, Shane D. Campbell, Victor J. Galea
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	mimosa bush control chemical herbicides encapsulation implantation Botany QK1-989
Acceso en línea:	https://doaj.org/article/24d0a04b4c9b4eaf8f234997d155c71e
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spelling	oai:doaj.org-article:24d0a04b4c9b4eaf8f234997d155c71e2021-11-25T18:47:07ZNovel Encapsulated Herbicide Delivery Mechanism: Its Efficacy in Mimosa Bush (<i>Vachellia farnesiana</i>) Control10.3390/plants101125052223-7747https://doaj.org/article/24d0a04b4c9b4eaf8f234997d155c71e2021-11-01T00:00:00Zhttps://www.mdpi.com/2223-7747/10/11/2505https://doaj.org/toc/2223-7747Mimosa bush (<i>Vachellia farnesiana</i>) is an invasive woody weed widely distributed in Australia. While it can be controlled using several mechanical and chemical techniques, this study evaluated a novel herbicide delivery mechanism that minimizes the risk of spray drift and potential non-target damage. This method, developed by Bioherbicides Australia, involves the implantation of encapsulated granular herbicides into the stem of intact plants or into the stump after cutting off plants close to ground level (cut stumps). Trials were implemented near Moree (New South Wales, Australia) on intact (two experimental runs) plants and cut stumped (two experimental runs) plants. For each trial, an untreated control plus the conventional basal bark application of a liquid formulation of triclopyr + picloram mixed with diesel was included for comparison. Encapsulated glyphosate, aminopyralid + metsulfuron-methyl, hexazinone and clopyralid were also tested in all trials. In addition, encapsulated triclopyr + picloram, and metsulfuron-methyl were included in one of the intact plant trials. Aminopyralid + metsulfuron-methyl was consistently most effective on cut stump and intact plants, whilst clopyralid provided highest mortality when applied to cut stumps and single-stemmed intact plants. Particularly for multi-stemmed intact plants, clopyralid should be applied to each stem. Overall, the highest efficacy was achieved on single stemmed plants, but with further refinement of the technique, it should be possible to achieve similar results for multi-stemmed individuals. This method resulted in a reduction in the use of herbicide and environmental contamination while significantly improving speed of treatment.Amelia A. LimbonganShane D. CampbellVictor J. GaleaMDPI AGarticlemimosa bushcontrolchemical herbicidesencapsulationimplantationBotanyQK1-989ENPlants, Vol 10, Iss 2505, p 2505 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	mimosa bush control chemical herbicides encapsulation implantation Botany QK1-989
spellingShingle	mimosa bush control chemical herbicides encapsulation implantation Botany QK1-989 Amelia A. Limbongan Shane D. Campbell Victor J. Galea Novel Encapsulated Herbicide Delivery Mechanism: Its Efficacy in Mimosa Bush (<i>Vachellia farnesiana</i>) Control
description	Mimosa bush (<i>Vachellia farnesiana</i>) is an invasive woody weed widely distributed in Australia. While it can be controlled using several mechanical and chemical techniques, this study evaluated a novel herbicide delivery mechanism that minimizes the risk of spray drift and potential non-target damage. This method, developed by Bioherbicides Australia, involves the implantation of encapsulated granular herbicides into the stem of intact plants or into the stump after cutting off plants close to ground level (cut stumps). Trials were implemented near Moree (New South Wales, Australia) on intact (two experimental runs) plants and cut stumped (two experimental runs) plants. For each trial, an untreated control plus the conventional basal bark application of a liquid formulation of triclopyr + picloram mixed with diesel was included for comparison. Encapsulated glyphosate, aminopyralid + metsulfuron-methyl, hexazinone and clopyralid were also tested in all trials. In addition, encapsulated triclopyr + picloram, and metsulfuron-methyl were included in one of the intact plant trials. Aminopyralid + metsulfuron-methyl was consistently most effective on cut stump and intact plants, whilst clopyralid provided highest mortality when applied to cut stumps and single-stemmed intact plants. Particularly for multi-stemmed intact plants, clopyralid should be applied to each stem. Overall, the highest efficacy was achieved on single stemmed plants, but with further refinement of the technique, it should be possible to achieve similar results for multi-stemmed individuals. This method resulted in a reduction in the use of herbicide and environmental contamination while significantly improving speed of treatment.
format	article
author	Amelia A. Limbongan Shane D. Campbell Victor J. Galea
author_facet	Amelia A. Limbongan Shane D. Campbell Victor J. Galea
author_sort	Amelia A. Limbongan
title	Novel Encapsulated Herbicide Delivery Mechanism: Its Efficacy in Mimosa Bush (<i>Vachellia farnesiana</i>) Control
title_short	Novel Encapsulated Herbicide Delivery Mechanism: Its Efficacy in Mimosa Bush (<i>Vachellia farnesiana</i>) Control
title_full	Novel Encapsulated Herbicide Delivery Mechanism: Its Efficacy in Mimosa Bush (<i>Vachellia farnesiana</i>) Control
title_fullStr	Novel Encapsulated Herbicide Delivery Mechanism: Its Efficacy in Mimosa Bush (<i>Vachellia farnesiana</i>) Control
title_full_unstemmed	Novel Encapsulated Herbicide Delivery Mechanism: Its Efficacy in Mimosa Bush (<i>Vachellia farnesiana</i>) Control
title_sort	novel encapsulated herbicide delivery mechanism: its efficacy in mimosa bush (<i>vachellia farnesiana</i>) control
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/24d0a04b4c9b4eaf8f234997d155c71e
work_keys_str_mv	AT ameliaalimbongan novelencapsulatedherbicidedeliverymechanismitsefficacyinmimosabushivachelliafarnesianaicontrol AT shanedcampbell novelencapsulatedherbicidedeliverymechanismitsefficacyinmimosabushivachelliafarnesianaicontrol AT victorjgalea novelencapsulatedherbicidedeliverymechanismitsefficacyinmimosabushivachelliafarnesianaicontrol
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Novel Encapsulated Herbicide Delivery Mechanism: Its Efficacy in Mimosa Bush (<i>Vachellia farnesiana</i>) Control

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