The Drivers of Herbicide Use among Arable Farmers in Canterbury, New Zealand: Toward an Integrated Approach

Espig, Martin; Dynes, Robyn; Henwood, Roxanne; James, T.K.

doi:10.1080/08941920.2022.2032516

Cited by 14 publications

(20 citation statements)

References 46 publications

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“…This research demonstrates that the interplay between a range of social, cultural, and biophysical drivers stabilises, and can lock in, established use patterns. Given the multifaceted social and biological characteristics of HR, some researchers thus regard its management as a socio-biological dilemma or wicked problem, which suggests that HR has no simple solutions due to the multitude of biological and technological drivers, complexities of human decision-making, and associated economic aspects [26][27][28][29][30][31]. In addition to well-established best practice recommendations, a range of multipronged solutions has, therefore, been proposed to address the various wicked-problem elements of HR.…”

Section: Social and Cultural Solutions To Herbicide Resistancementioning

confidence: 99%

“…stakeholders from across the agricultural system was to account for the social and advisory networks involved in farmers' decision-making processes related to weed management [31].…”

Section: Plos Onementioning

confidence: 99%

“…The primary author led the coding process with support from the secondary author, and both used the data analysis software NVivo to assist coding. The thematic analysis followed an inductive approach to elicit core themes on the drivers of farmers' herbicide use (see [31]) and potential solutions to managing HR. Emerging themes were reviewed and refined through discussions between the authors and coresearchers, including with colleagues and partners within the wider research programme.…”

Section: Plos Onementioning

confidence: 99%

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The social foundations for re-solving herbicide resistance in Canterbury, New Zealand

Espig

Henwood

2023

PLoS ONE

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Synthetic herbicides have revolutionised agricultural weed control. Herbicide resistance (HR) is a natural process through which weeds evolve to be no longer susceptible to a herbicide. Repeated use of similar herbicides can lead to the proliferation of resistant weed populations, with detrimental on-farm effects. To date, 267 weed species worldwide are resistant to at least one herbicide. Yet, achieving universal uptake of best practice principles to manage HR remains difficult. Historically not a high priority for New Zealand cropping farmers, resistance may be more prevalent than commonly assumed. This article contributes to emerging national management strategies and the international scholarship on the human dimensions of HR. Regarding resistance as a socio-biological challenge, we draw on qualitative social research with agricultural stakeholders in New Zealand’s main cropping region to outline important psychosocial preconditions for effective resistance management. Our findings show that these preconditions include: influencing awareness and attitudes, knowledge and skills; approaching HR as a shared responsibility; and supporting long-term and holistic thinking. We conclude that these preconditions form the social foundations for agricultural stakeholders’ capacity to enact best practice principles to continuously re-solve HR. This novel framing allows analytical differentiation between the capacity and ability to act, with practical recommendations and future research needing to address both components of effective HR management.

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Section: Social and Cultural Solutions To Herbicide Resistancementioning

confidence: 99%

“…stakeholders from across the agricultural system was to account for the social and advisory networks involved in farmers' decision-making processes related to weed management [31].…”

Section: Plos Onementioning

confidence: 99%

Section: Plos Onementioning

confidence: 99%

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The social foundations for re-solving herbicide resistance in Canterbury, New Zealand

Espig

Henwood

2023

PLoS ONE

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“…Since the end of World War II, many agricultural systems have become reliant on herbicides for weed management (Davis and Frisvold 2017; Norsworthy et al 2012). Associated declines in the efficacy of herbicides threaten current agricultural production systems, posing significant economic costs and threatening food security at multiple scales (Ervin et al 2019; Espig et al 2022). Currently, weeds have evolved resistance to more than 150 herbicides (Beckie et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Herbicide-resistance management: a common pool resource problem?

Bergmann,

Burke,

Wardropper

2024

Weed Sci

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Herbicide resistance is often viewed as a complex problem in need of innovative management solutions. Because of the transboundary mobility of many weeds, resistance to herbicides is also viewed as a community-scale issue. Consequently, the idea of greater coordination among resource users – especially growers – is often promoted as a management approach. Recently, scholars have framed herbicide resistance as a commons problem in need of collective action. Specifically, social scientists have explored the utility of adopting bottom-up community-based approaches to help solve the growing problem of herbicide resistance through a framework for interpreting the commons known as common pool resource theory. This article analyzes how herbicide resistance fits – and fails to fit – within common pool resource theory and offers an updated conceptual framework from which to build future work. We argue that the application of common pool resource theory to herbicide resistance management is underdeveloped and approaches based on this theory have shown little success. The relevance of common pool resource theory for informing herbicide resistance management is less settled than existing scholarship has suggested and other frameworks for approaching transboundary resource problems – such as co-production of knowledge and participatory action research – warrant consideration.

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“…Resistance to herbicides with other modes of action amitrole (Group 34), glufosinate (Group 10) or clethodim (Group 1) was also tested for sites where ryegrass seeds were available in sufficient quantities. Documenting the prevalence of herbicide resistance should facilitate increased grower awareness about this issue and can be used as a starting point for the adoption of mitigation measures, as it has for the arable sector (Espig et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Ryegrass resistance to glyphosate and amitrole is becoming common in New Zealand vineyards

Buddenhagen

Harvey

Wynne-Jones

et al. 2022

NZPP

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The prevalence of herbicide resistance in ryegrass (Lolium spp.) in the wine-growing regions in New Zealand is poorly understood. Cases of glyphosate, glufosinate and amitrole-resistant ryegrass were documented in a few vineyards in New Zealand in 2013, but there have been no regional surveys for resistance. To address this knowledge gap, 106 vineyards were visited across the important New Zealand wine-growing regions of Marlborough and Waipara in late February 2021, and Hawke’s Bay and Gisborne in late February 2022, and seed samples from individual plants at each site surviving weed-control measures were collected. Ryegrass was found in more South Island (68%) than North Island (20%) vineyards. These seeds, and those from a susceptible ryegrass population were sown in marked rows into trays (10-20 seeds per herbicide) and grown in a glasshouse. When seedlings reached the 3-4 leaf stage, trays were sprayed at the highest recommended label rate of glyphosate. Samples with enough seed were also screened against additional herbicides, amitrole, glufosinate or clethodim. The results indicated 39% of the surveyed vineyards contained glyphosate-resistant ryegrass, with cases detected across all regions, including 58% of vineyards in Marlborough. Eleven of the 27 Marlborough vineyards screened contained amitrole-resistant ryegrass; six samples were also resistant to glyphosate. However, glufosinate and clethodim were still effective against ryegrass at the sites tested. Considering the levels of herbicide resistance to ryegrass observed in this study, growers should explore alternative weed-suppression measures, including tilling, cover-crops, grazing, mowing and the use of herbicides with different modes of action.

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The Drivers of Herbicide Use among Arable Farmers in Canterbury, New Zealand: Toward an Integrated Approach

Cited by 14 publications

References 46 publications

The social foundations for re-solving herbicide resistance in Canterbury, New Zealand

The social foundations for re-solving herbicide resistance in Canterbury, New Zealand

Herbicide-resistance management: a common pool resource problem?

Ryegrass resistance to glyphosate and amitrole is becoming common in New Zealand vineyards

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