Action on invasive species: Control strategies of Parthenium hysterophorus L. on smallholder farms in Kenya

Parthenium hysterophorus L. (Asteraceae) is an invasive alien weed with detrimental effects on agricultural production, biodiversity, human and animal health, threating rural livelihoods in Asia and Africa. The problem emerged recently in the Kenyan Rift Valley, where it began to affect the landhold...

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Autores principales: Tabe-Ojong, Martin Paul Jr., Alvarez, Miguel, Ihli, Hanna J., Becker, Mathias, Heckelei, Thomas
Formato: Journal Article
Lenguaje:Inglés
Publicado: Springer 2022
Materias:
Acceso en línea:https://hdl.handle.net/10568/141143
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author Tabe-Ojong, Martin Paul Jr.
Alvarez, Miguel
Ihli, Hanna J.
Becker, Mathias
Heckelei, Thomas
author_browse Alvarez, Miguel
Becker, Mathias
Heckelei, Thomas
Ihli, Hanna J.
Tabe-Ojong, Martin Paul Jr.
author_facet Tabe-Ojong, Martin Paul Jr.
Alvarez, Miguel
Ihli, Hanna J.
Becker, Mathias
Heckelei, Thomas
author_sort Tabe-Ojong, Martin Paul Jr.
collection Repository of Agricultural Research Outputs (CGSpace)
description Parthenium hysterophorus L. (Asteraceae) is an invasive alien weed with detrimental effects on agricultural production, biodiversity, human and animal health, threating rural livelihoods in Asia and Africa. The problem emerged recently in the Kenyan Rift Valley, where it began to affect the landholdings of both agro-pastoralists and crop farmers. These vulnerable smallholders depend heavily on natural resources for their livelihoods. In this study, we assessed the severity of parthenium invasion and farmers’ management responses using a sample of 530 agro-pastoralists in Baringo County, Kenya, in 2019. We hypothesise that the implementation of existing management strategies depends on the state of parthenium invasion and household socio-economic characteristics. The prevalence and severity of parthenium invasion differed greatly among field plots. To control weeds, farmers resort to either hand weeding, the use of synthetic herbicides, or intensive tillage, sometimes in combination with mulching. A multivariate probit regression model shows that households’ characteristics determine the type of control strategies used as well as their complementarity and substitutability. Hand weeding is the most common option, adopted by almost 40% of farmers. The use of agrochemicals or soil-based control strategies appears to be related to knowledge and information characteristics such as access to extension services, membership in organisations and the educational level of household heads. While hand weeding and the use of synthetic herbicides depict significant substitutability, the latter strategy is limited to a few larger farms with market-oriented production. As parthenium invasion continues, policies need to improve farmer awareness and access to knowledge to enable pro-poor and environmentally sustainable control of parthenium on smallholder farms.
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spelling CGSpace1411432025-10-26T13:01:45Z Action on invasive species: Control strategies of Parthenium hysterophorus L. on smallholder farms in Kenya Tabe-Ojong, Martin Paul Jr. Alvarez, Miguel Ihli, Hanna J. Becker, Mathias Heckelei, Thomas models asteraceae weed control invasive species smallholders probit analysis land use change herbicides Parthenium hysterophorus L. (Asteraceae) is an invasive alien weed with detrimental effects on agricultural production, biodiversity, human and animal health, threating rural livelihoods in Asia and Africa. The problem emerged recently in the Kenyan Rift Valley, where it began to affect the landholdings of both agro-pastoralists and crop farmers. These vulnerable smallholders depend heavily on natural resources for their livelihoods. In this study, we assessed the severity of parthenium invasion and farmers’ management responses using a sample of 530 agro-pastoralists in Baringo County, Kenya, in 2019. We hypothesise that the implementation of existing management strategies depends on the state of parthenium invasion and household socio-economic characteristics. The prevalence and severity of parthenium invasion differed greatly among field plots. To control weeds, farmers resort to either hand weeding, the use of synthetic herbicides, or intensive tillage, sometimes in combination with mulching. A multivariate probit regression model shows that households’ characteristics determine the type of control strategies used as well as their complementarity and substitutability. Hand weeding is the most common option, adopted by almost 40% of farmers. The use of agrochemicals or soil-based control strategies appears to be related to knowledge and information characteristics such as access to extension services, membership in organisations and the educational level of household heads. While hand weeding and the use of synthetic herbicides depict significant substitutability, the latter strategy is limited to a few larger farms with market-oriented production. As parthenium invasion continues, policies need to improve farmer awareness and access to knowledge to enable pro-poor and environmentally sustainable control of parthenium on smallholder farms. 2022-05 2024-04-12T13:37:21Z 2024-04-12T13:37:21Z Journal Article https://hdl.handle.net/10568/141143 en Open Access Springer Tabe Ojong, Martin Paul Jr.; Alvarez, Miguel; Ihli, Hanna J.; Becker, Mathias; and Heckelei, Thomas. 2022. Action on invasive species: Control strategies of Parthenium hysterophorus L. on smallholder farms in Kenya. Environmental Management 69(5): 861–870. https://doi.org/10.1007/s00267-021-01577-5
spellingShingle models
asteraceae
weed control
invasive species
smallholders
probit analysis
land use change
herbicides
Tabe-Ojong, Martin Paul Jr.
Alvarez, Miguel
Ihli, Hanna J.
Becker, Mathias
Heckelei, Thomas
Action on invasive species: Control strategies of Parthenium hysterophorus L. on smallholder farms in Kenya
title Action on invasive species: Control strategies of Parthenium hysterophorus L. on smallholder farms in Kenya
title_full Action on invasive species: Control strategies of Parthenium hysterophorus L. on smallholder farms in Kenya
title_fullStr Action on invasive species: Control strategies of Parthenium hysterophorus L. on smallholder farms in Kenya
title_full_unstemmed Action on invasive species: Control strategies of Parthenium hysterophorus L. on smallholder farms in Kenya
title_short Action on invasive species: Control strategies of Parthenium hysterophorus L. on smallholder farms in Kenya
title_sort action on invasive species control strategies of parthenium hysterophorus l on smallholder farms in kenya
topic models
asteraceae
weed control
invasive species
smallholders
probit analysis
land use change
herbicides
url https://hdl.handle.net/10568/141143
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