Farmer Attitudes Toward Cooperative Approaches to Herbicide Resistance Management: A Common Pool Ecosystem Service Challenge

Ervin, David E.; Breshears, Elise H.; Frisvold, George B.; Hurley, Terrance M.; Dentzman, Katherine; Gunsolus, Jeffrey L.; Jussaume, Raymond A.; Owen, Micheal D. K.; Norsworthy, Jason K.; Mamun, Mustofa Mahmud Al; Everman, Wesley J.

doi:10.1016/j.ecolecon.2018.11.023

Cited by 44 publications

(40 citation statements)

References 54 publications

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“…However, most Mexican citrus growers have not adopted the practice of using PRE and residual herbicides for effective and timely control of weeds. In addition, growers are reluctant to adopt non-chemical weed control methods [29,30]. Thus, the misuse of herbicides (late application, subdose, or overdose) has selected for resistant weeds, which increased yield losses and production costs [30].…”

Section: Discussionmentioning

confidence: 99%

“…Glufosinate + oxifluorfen and glyphosate + (bromacil + diuron) maintained this control level up to 75 DAT in both fields, but in global terms, they were the more expensive treatments (1.79 and 1.89 $/day ha −1 , respectively). The cost of an herbicide treatment, without considering the application cost, is a good indicator that can help in selecting a chemical treatment [29,31], but this cost is relevant when the choice considers the period of control. In this sense, mixtures of glyphosate with sethoxydim, cletodim or oxadiazon were not efficient to control weeds in practical and economic terms.…”

Section: Discussionmentioning

confidence: 99%

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Management of Glyphosate-Resistant Weeds in Mexican Citrus Groves: Chemical Alternatives and Economic Viability

Cruz

Martínez

Silveira

et al. 2019

Plants

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Glyphosate is a cheap herbicide that has been used to control a wide range of weeds (4–6 times/year) in citrus groves of the Gulf of Mexico; however, its excessive use has selected for glyphosate-resistant weeds. We evaluated the efficacy and economic viability of 13 herbicide treatments (glyphosate combined with PRE- and/or POST-emergence herbicides and other alternative treatments), applied in tank-mixture or sequence, to control glyphosate-resistant weeds in two Persian lime groves (referred to as SM-I and SM-II) of the municipality of Acateno, Puebla, during two years (2014 and 2015). The SM-I and SM-II fields had 243 and 346 weeds/m2, respectively, composed mainly of Bidens pilosa and Leptochloa virgata. Echinochloa colona was also frequent in SM-II. The glyphosate alone treatments (1080, 1440, or 1800 g ae ha−1) presented control levels of the total weed population ranging from 64% to 85% at 15, 30, and 45 d after treatment (DAT) in both fields. Mixtures of glyphosate with grass herbicides such as fluazifop-p-butyl, sethoxydim, and clethodim efficiently controlled E. colona and L. virgata, but favored the regrowth of B. pilosa. The sequential applications of glyphosate + (bromacil + diuron) and glufosinate + oxyfluorfen controlled more than 85% the total weed community for more than 75 days. However, these treatments were between 360% and 390% more expensive (1.79 and 1.89 $/day ha−1 of satisfactory weed control, respectively), compared to the representative treatment (glyphosate 1080 g ae ha−1 = USD $29.0 ha−1). In practical and economic terms, glufosinate alone was the best treatment controlling glyphosate resistant weeds maintaining control levels >80% for at least 60 DAT ($1.35/day ha−1). The rest of the treatments, applied in tank-mix or in sequence with glyphosate, had similar or lower control levels (~70%) than glyphosate at 1080 g ae ha−1. The adoption of glufosiante alone, glufosinate + oxyfluorfen or glyphosate + (bromacil + diuron) must consider the cost of satisfactory weed control per day, the period of weed control, as well as other factors associated with production costs to obtain an integrated weed management in the short and long term.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Management of Glyphosate-Resistant Weeds in Mexican Citrus Groves: Chemical Alternatives and Economic Viability

Cruz

Martínez

Silveira

et al. 2019

Plants

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“…More recently, however, a 2015 survey found that 71% of growers were concerned about HR weeds spreading to their farms from nearby operations . For the question, ‘How concerned are you about the presence of weeds resistant to multiple herbicides on your farming operation?’ with a 4‐point Likert scale (1 = not concerned at all, 2 = not very concerned, 3 = somewhat concerned, 4 = very concerned), the mean of responses was 3.46 . In a 2016 survey of Corn Belt soybean producers, 97% agreed or strongly agreed that they were concerned about glyphosate resistance.…”

Section: Resultsmentioning

confidence: 99%

“…The continued growth in the number and geographic spread of herbicide‐resistant (HR) weeds across North America may threaten farm profitability, lead to shifts to herbicides with more negative environmental profiles, or discourage environmentally beneficial farming practices such as conservation tillage . Yet, despite continued calls to action to promote resistance management practices, their adoption remains spotty …”

Section: Introductionmentioning

confidence: 99%

Do farmers manage weeds on owned and rented land differently? Evidence from US corn and soybean farms

Frisvold

Albright

Ervin

et al. 2020

Pest Management Science

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BACKGROUND: It has been frequently argued that growers have less incentive to manage the evolution and spread of herbicide-resistant weeds on leased than on owned land. This is because resistance management provides long-term rather than short-term benefits that operators may be less assured of capturing on land they do not own. Yet, empirical evidence supporting this argument has been lacking.RESULTS: This study reports on results from a large-scale national survey of weed management and other crop production practices on US agricultural fields. Up to 11 weed management practices were compared across owner-operated versus renteroperated fields. Analysis of survey data from corn and soybean fields did not support the hypothesis that adoption of resistance management practices is lower on rented acres. In most instances, there were no statistically significant differences in herbicide use or weed management practices on rented versus owned land. This was true at both national and regional levels of analysis. Where there were significant differences, practices associated with greater herbicide resistance management were, as often as not, more prevalent on rented than owned land.CONCLUSIONS: A useful area of future research would be to test for land tenure differences in resistance management using multivariate analysis to control for confounding effects. Unobserved farmer or land characteristics may be confounding results and masking land tenure effects. Results here, however, suggest that these other effects are dominating any obvious disincentive effects of land leasing on resistance management. Of greater concern, the adoption of key resistance management practices was low on both owned and rented land.

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“…This shown that farmers often prefer to continue living with glyphosate resistance than to adopt a new but more expensive technologies, i.e., the adoption of an HR technology is motivated by the cost-benefit ratio Herbicide Resistance in Brazil: Status, Impacts, and Future Challenges DOI: http://dx.doi.org /10.5772/intechopen.91236 by saving costs devoted to pest control guaranteeing high yields [2]. Therefore, the success of Enlist E3™ and Intacta 2 Xtend® technologies, which will be available in the Brazilian market from 2020/2021 and 2021/2022 crop cycles, respectively, will depend on their final cost; meanwhile, farmers will continue to be reluctant to adopt integrated management measures for herbicide-resistant weed control or new HR technologies [96,97]. The Brazilian scientific community has the task of demonstrating to the farmers that, although the implementation of an integrated weed management program is complex and expensive initially, in the long term it is profitable and environmentally sustainable [98].…”

Section: Economic Factorsmentioning

confidence: 99%

Herbicide Resistance in Brazil: Status, Impacts, and Future Challenges

Cruz¹,

Oliveira²,

Carvalho³

et al. 2020

Pests, Weeds and Diseases in Agricultural Crop and Animal Husbandry Production

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Brazil is a large producer and exporter of crops in global terms. Weeds may be responsible for ~14% of crop losses, depending on the crop system. Herbicides occupy 58% of the Brazilian pesticide market; however, the continuous use of these products and the high selection pressure have led to the emergence of weeds resistant to herbicides. Today, there are 51 weed species reported as being resistant to herbicides in Brazil, of which 17 involves cross and multiple-resistance. Acetolactate synthase (ALS), acetyl coenzyme A carboxylase (ACCase) and 5-enolpiruvylshikimate-3-phosphate synthase (EPSPs) inhibitors are the herbicidal groups with the most resistance cases. Soybean, corn, rice, wheat and cotton present 30, 12, 10, 9 and 8 cases, respectively, occurring mainly in herbicide-resistant crop fields from the Southern and Central West regions of the country. To better understand the dimensions of herbicide resistance, in this chapter, we will explore the size of agricultural activity in Brazil, the pesticide market and the use of herbicides in the main crops. In addition, the agronomic, scientific-technical and economic aspects that have contributed, directly or indirectly, to the selection of resistant weeds will be discussed in order to have an overview of the economic impact of herbicide resistance management.

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Farmer Attitudes Toward Cooperative Approaches to Herbicide Resistance Management: A Common Pool Ecosystem Service Challenge

Cited by 44 publications

References 54 publications

Management of Glyphosate-Resistant Weeds in Mexican Citrus Groves: Chemical Alternatives and Economic Viability

Management of Glyphosate-Resistant Weeds in Mexican Citrus Groves: Chemical Alternatives and Economic Viability

Do farmers manage weeds on owned and rented land differently? Evidence from US corn and soybean farms

Herbicide Resistance in Brazil: Status, Impacts, and Future Challenges

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