An Analysis of Climate Impacts on Herbicide, Insecticide, and Fungicide Expenditures

Rhodes, Lauren A.; McCarl, Bruce A.

doi:10.3390/agronomy10050745

Cited by 24 publications

(16 citation statements)

References 40 publications

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“…This will lead to different pesticide strategies; either using increased concentrations or multiple applications of pesticides [ 89 ]. Fungicide usage will change due to climate change as well [ 90 ]. As azole resistance is associated with fungicide usage, we may expect increased trends of resistant isolates within the clinic if the use of azoles is expanded [ 91 , 92 ].…”

Section: How Climate Change Could Affect Species Commonly Associated With Infections Of Humansmentioning

confidence: 99%

The Consequences of Our Changing Environment on Life Threatening and Debilitating Fungal Diseases in Humans

Rhijn

Bromley

2021

JoF

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Human activities have significantly impacted the environment and are changing our climate in ways that will have major consequences for ourselves, and endanger animal, plant and microbial life on Earth. Rising global temperatures and pollution have been highlighted as potential drivers for increases in infectious diseases. Although infrequently highlighted, fungi are amongst the leading causes of infectious disease mortality, resulting in more than 1.5 million deaths every year. In this review we evaluate the evidence linking anthropomorphic impacts with changing epidemiology of fungal disease. We highlight how the geographic footprint of endemic mycosis has expanded, how populations susceptible to fungal infection and fungal allergy may increase and how climate change may select for pathogenic traits and indirectly contribute to the emergence of drug resistance.

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Section: How Climate Change Could Affect Species Commonly Associated With Infections Of Humansmentioning

confidence: 99%

The Consequences of Our Changing Environment on Life Threatening and Debilitating Fungal Diseases in Humans

Rhijn

Bromley

2021

JoF

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“…Temperature effects have been demonstrated to have a compounding influence on both average crop yields and yield risks, have already begun to produce discernible effects, and can operate through biotic channels like pest damage [1,2] and abiotic channels encompassing both heat-and water-related stress, according to numerous studies [3][4][5][6][7][8][9][10][11][12][13]. Aflatoxin contamination is one of these risks, as it is likely to increase under a changing climate because of its association with warm and dry temperatures [14,15].…”

Section: Introductionmentioning

confidence: 99%

Climate change will increase aflatoxin presence in US Corn

Hennessy

Tack

et al. 2022

Environ. Res. Lett.

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The impacts of climate change on agricultural production are a global concern and have already begun to occur (1, 2), with major drivers including warmer temperatures and the occurrence of extreme weather events (3-8). An important dimension of the climate change-crop yield relationship that has often been overlooked in the empirical literature is the influence that warming temperatures can have on plant damage arriving through biotic channels, such as pest infestation or fungal infection (5). Aflatoxins are carcinogenic chemicals produced by the fungi Aspergillus flavus and A. parasiticus, which commonly infect food crops. Currently, in the United States, aflatoxin is a perennial contaminant in corn grown in the South, but rare in the Corn Belt and northern states. Climate change may expand aflatoxin’s geographical prevalence, however; because hot, dry summers promote aflatoxin accumulation. Here we model aflatoxin risk as a function of corn plant growth stages and weather to predict US regions with high aflatoxin risk in 2031-2040, based on sixteen climate change models. Our results suggest that over 89.5% of corn-growing counties in fifteen states, including the Corn Belt, will experience increased aflatoxin contamination in 2031-2040 compared to 2011-2020. Interestingly, the results are spatially heterogeneous and include several Southern counties expected to have lower aflatoxin risk, because the causative fungi become inactivated at very high temperatures.

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“…Meteorological parameters in totality determine the environmental concentration of pesticides by regulating their rate of degradation (Delcour et al 2015). Besides, climate change is reported to alter the effectiveness and persistence of pesticides (Rhodes and McCarl 2020), often necessitating an increased pesticide application (Noyes et al 2009). Therefore, conducting dissipation experiments under varying climatic conditions is necessary to predict the fate of pesticides accurately.…”

Section: Introductionmentioning

confidence: 99%

Effect of Seasonal Variation on the Persistence and Dissipation Behaviour of the Herbicide Mixture of Fomesafen + Quizalofop-Ethyl in Tropical Soybean Agroecosystem and Safety Risk Assessment

S¹,

Singha²,

Kundu³

et al. 2021

Preprint

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Weeds are the major limiting factor for optimum soybean production in India. The herbicide mixture of fomesafen and quizalofop-ethyl provides effective control of a broad spectrum of weeds, but its fate in the tropical soybean ecosystem is unknown and also the risks involved to the consumer and the environment are still unexplored. Hence, a supervised field trial was conducted following the post-emergence application of fomesafen 12% + quizalofop-ethyl 3% in two consecutive seasons. The dissipation of fomesafen followed biphasic double first order in parallel kinetics, whereas quizalofop-ethyl dissipation followed first order kinetics. A significant difference in the persistence of fomesafen was observed due to seasonal variation of meteorological parameters. However, the variation was significant only in plant, but non-significant in soil, in case of quizalofop-ethyl. The overall shorter persistence of both fomesafen and quizalofop-ethyl was recorded in warmer climatic conditions of Season I than Season II. The results thus indicated that care must be taken during application of this herbicide mixture in cold climatic regions, since both the herbicides may exhibit higher stability. The absence of end-point residues at harvest concluded that the formulation is safe for application in tropical agroclimate. The low chronic dietary toxicity and low soil ecological toxicity indicated that the herbicide mixture will offer no threat against consumer health and soil ecosystem. However, there was a concern about the toxicity against soil algal population which needs to be reconfirmed by further studies.

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An Analysis of Climate Impacts on Herbicide, Insecticide, and Fungicide Expenditures

Cited by 24 publications

References 40 publications

The Consequences of Our Changing Environment on Life Threatening and Debilitating Fungal Diseases in Humans

The Consequences of Our Changing Environment on Life Threatening and Debilitating Fungal Diseases in Humans

Climate change will increase aflatoxin presence in US Corn

Effect of Seasonal Variation on the Persistence and Dissipation Behaviour of the Herbicide Mixture of Fomesafen + Quizalofop-Ethyl in Tropical Soybean Agroecosystem and Safety Risk Assessment

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