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Biology, Ecology and Management of the Invasive Navua Sedge (Cyperus aromaticus)—A Global Review

Navua sedge (Cyperus aromaticus (Ridley) Mattf. & Kukenth) is an invasive perennial sedge, native to tropical Africa, which is threatening many natural ecosystems and agroecosystems, especially in northern Queensland, Australia. Crop and pasture production have been impacted by Navua sedge and i...

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Autores principales: Shi, Boyang, Osunkoya, Olusegun O., Chadha, Aakansha, Florentine, Singarayer K., Dhileepan, Kunjithapatham
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8465260/
https://www.ncbi.nlm.nih.gov/pubmed/34579384
http://dx.doi.org/10.3390/plants10091851
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author Shi, Boyang
Osunkoya, Olusegun O.
Chadha, Aakansha
Florentine, Singarayer K.
Dhileepan, Kunjithapatham
author_facet Shi, Boyang
Osunkoya, Olusegun O.
Chadha, Aakansha
Florentine, Singarayer K.
Dhileepan, Kunjithapatham
author_sort Shi, Boyang
collection PubMed
description Navua sedge (Cyperus aromaticus (Ridley) Mattf. & Kukenth) is an invasive perennial sedge, native to tropical Africa, which is threatening many natural ecosystems and agroecosystems, especially in northern Queensland, Australia. Crop and pasture production have been impacted by Navua sedge and it is also directly causing reductions in dairy and beef production in affected regions. This review documents the biology, ecology and potential management options to minimise the spread and impact of Navua sedge. The weed reproduces both sexually (seeds) and vegetatively (via underground rhizomes). Its tiny seeds can be spread easily via wind, water, vehicles, farm machinery and animals, whilst the rhizomes assist with establishment of dense stands. The CLIMEX model (which uses distribution and climate data in native and novel ranges) indicates that in Australia, Navua sedge has the potential to spread further within Queensland and into the Northern Territory, New South Wales and Victoria. Several management strategies, including mechanical, chemical and agronomic methods, and their integration will have to be used to minimise agricultural production losses caused by Navua sedge, but most of these methods are currently either ineffective or uneconomical when used alone. Other management approaches, including biological control and mycoherbicides, are currently being explored. We conclude that a better understanding of the interaction of its physiological processes, ecological patterns and genetic diversity across a range of conditions found in the invaded and native habitats will help to contribute to and provide more effective integrated management approaches for Navua sedge.
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spelling pubmed-84652602021-09-27 Biology, Ecology and Management of the Invasive Navua Sedge (Cyperus aromaticus)—A Global Review Shi, Boyang Osunkoya, Olusegun O. Chadha, Aakansha Florentine, Singarayer K. Dhileepan, Kunjithapatham Plants (Basel) Review Navua sedge (Cyperus aromaticus (Ridley) Mattf. & Kukenth) is an invasive perennial sedge, native to tropical Africa, which is threatening many natural ecosystems and agroecosystems, especially in northern Queensland, Australia. Crop and pasture production have been impacted by Navua sedge and it is also directly causing reductions in dairy and beef production in affected regions. This review documents the biology, ecology and potential management options to minimise the spread and impact of Navua sedge. The weed reproduces both sexually (seeds) and vegetatively (via underground rhizomes). Its tiny seeds can be spread easily via wind, water, vehicles, farm machinery and animals, whilst the rhizomes assist with establishment of dense stands. The CLIMEX model (which uses distribution and climate data in native and novel ranges) indicates that in Australia, Navua sedge has the potential to spread further within Queensland and into the Northern Territory, New South Wales and Victoria. Several management strategies, including mechanical, chemical and agronomic methods, and their integration will have to be used to minimise agricultural production losses caused by Navua sedge, but most of these methods are currently either ineffective or uneconomical when used alone. Other management approaches, including biological control and mycoherbicides, are currently being explored. We conclude that a better understanding of the interaction of its physiological processes, ecological patterns and genetic diversity across a range of conditions found in the invaded and native habitats will help to contribute to and provide more effective integrated management approaches for Navua sedge. MDPI 2021-09-07 /pmc/articles/PMC8465260/ /pubmed/34579384 http://dx.doi.org/10.3390/plants10091851 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Shi, Boyang
Osunkoya, Olusegun O.
Chadha, Aakansha
Florentine, Singarayer K.
Dhileepan, Kunjithapatham
Biology, Ecology and Management of the Invasive Navua Sedge (Cyperus aromaticus)—A Global Review
title Biology, Ecology and Management of the Invasive Navua Sedge (Cyperus aromaticus)—A Global Review
title_full Biology, Ecology and Management of the Invasive Navua Sedge (Cyperus aromaticus)—A Global Review
title_fullStr Biology, Ecology and Management of the Invasive Navua Sedge (Cyperus aromaticus)—A Global Review
title_full_unstemmed Biology, Ecology and Management of the Invasive Navua Sedge (Cyperus aromaticus)—A Global Review
title_short Biology, Ecology and Management of the Invasive Navua Sedge (Cyperus aromaticus)—A Global Review
title_sort biology, ecology and management of the invasive navua sedge (cyperus aromaticus)—a global review
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8465260/
https://www.ncbi.nlm.nih.gov/pubmed/34579384
http://dx.doi.org/10.3390/plants10091851
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