Agrochemical Mixtures Detected on Wildflowers near Cattle Feed Yards

Peterson, Eric M.; Wooten, Kimberly J.; Subbiah, Seenivasan; Anderson, Todd A.; Longing, Scott D.; Smith, Philip

doi:10.1021/acs.estlett.7b00123

Cited by 26 publications

(36 citation statements)

References 32 publications

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“…A recent study in west Texas quantified ractopamine in wildflowers collected near feedyards at concentrations up to 382 ng/g (Peterson et al 2017). That study, in combination with the playa wetland data in the present study, confirms that both terrestrial and aquatic wildlife in the west Texas region are potentially exposed to ractopamine emitted from feedyards.…”

Section: Potential For Ractopamine Exposure For Wildlife Speciessupporting

confidence: 89%

Ractopamine in particulate matter emitted from beef cattle feedyards and playa wetlands in the Central Plains

Wooten

Sandoz

Smith

2018

Enviro Toxic and Chemistry

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Beef cattle in the United States are routinely administered ractopamine, a β-adrenergic receptor agonist, to enhance growth. The present study is the first to quantify ractopamine in feedyard-emitted particulate matter and playa wetlands near feedyards. Ractopamine was present in 92% of particulate matter samples, 16% of playa sediment samples, and 3% of playa water samples, at maximum concentrations of 4.7 μg/g, 5.2 ng/g (dry wt), and 271 ng/L, respectively. These data suggest that aerial transmission and deposition of particulate matter is a transport mechanism for ractopamine between feedyards and aquatic systems in the region. Environ Toxicol Chem 2018;37:970-974. © 2017 SETAC.

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Section: Potential For Ractopamine Exposure For Wildlife Speciessupporting

confidence: 89%

Ractopamine in particulate matter emitted from beef cattle feedyards and playa wetlands in the Central Plains

Wooten

Sandoz

Smith

2018

Enviro Toxic and Chemistry

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“…Pyrethroids are also highly toxic to pollinators (honey bee contact LD 50 = 8 ng/bee; Helson et al, 1994) and have therefore been registered by the US Environmental Protection Agency (USEPA) as restricted use pesticides (USEPA, 2006). Peterson et al (2017) quantified veterinary pharmaceuticals and insecticides on wildflowers occurring near beef cattle feed yards and nearby row crops and inferred that pollinators occurring on the High Plains may be exposed to agrochemicals originating from both sources concurrently. Further research confirmed that multiple agrochemicals are indeed aerially dispersed via PM beyond feed yard boundaries (Peterson et al, 2020), and it is well documented that drift from aerial application of pesticides to crops can affect nontarget organisms (Kambrekar, 2020;Sponsler & Johnson, 2017).…”

Section: Introductionmentioning

confidence: 99%

Agrochemical occurrence on colocated wildflowers and wild bees collected near beef cattle feed yards and row crops

Peterson

Green

Subbiah

et al. 2021

Integr Envir Assess & Manag

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It is well established that agrochemicals can pose significant threats to native pollinators; however, relatively little is known about pollinator risks associated with agrochemicals that are used on beef cattle feed yards. Recently, feed yard-derived agrochemicals and those from row crop agriculture were quantified on wildflowers growing on the High Plains, USA. To better characterize pollinator risks on the High Plains, we collected colocated wildflowers and foraging bees across three field seasons for analytical determination of residual agrochemicals. Agrochemicals were detected and quantified on the majority of wildflowers (85%) and nearly half of bees (49%). Permethrin was the most frequently detected analyte on wildflowers (32%) and bees (17%). Flower hazard quotients and flower hazard indices were calculated to deterministically evaluate risk to foraging pollinators. Mean flower hazard quotients exceeded one for 5/16 analytes (31%), and flower hazard quotients calculated for 30% of wildflowers were greater than 50. Flower hazard quotients for clothianidin exceeded 400 for 14% of wildflowers, which portends conditions conducive to frequent bee mortalities. Flower hazard indices were greater on wildflowers from mid-July to mid-September as compared with wildflowers collected earlier in the summer, which coincides with row crop planting and increased prevalence of feed yard flies. Hazard quotients and hazard index values calculated from agrochemical residue data suggest that pollinators frequenting wildflowers near beef cattle feed yards and row crops on the High Plains are at risk from both individual sources, and more so when considered in combination.

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“…Finally, pharmaceutical-laden dust loaded with antiparasitic substances can arise from feces contaminated with products [ 53 , 54 ], which may drift, deposit, and accumulate on flowers foraged by bees. By way of illustration, Peterson et al (2017) show how VMPs can contaminate wildflowers near cattle feeding yards through dust [ 55 ] ( Fig. 1 ).…”

Section: Environmental Fate Of Vmps and Biocidesmentioning

confidence: 99%

The threat of veterinary medicinal products and biocides on pollinators: A One Health perspective

Mahefarisoa

Delso²,

Zaninotto

et al. 2021

One Health

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The One Health approach acknowledges that human health is firmly linked to animal and environmental health. It involves using animals such as bees and other pollinators as sentinels for environmental contamination or biological indicators. Beekeepers noticed intoxications of apiaries located in the vicinity of sheep and cattle farms, which led to the suspicion of bees' intoxication by the products used for livestock: veterinary medicinal products (VMPs) and Biocides, confirmed by laboratory analysis. We review the legal context of VMPs and Biocidal products considering Europe as a case study, and identify shortcomings at the environmental level. We describe the possible ways these products could intoxicate bees in the vicinity of livestock farms. We also illustrate the way they may impact non-target species. The cases of ivermectin and abamectin as VMPs, deltamethrin and permethrin as Biocides are considered as case studies. We show bees can be exposed to new and unrecognized routes of exposure to these chemicals, and demonstrate that their application in livestock farming can affect the survival of pollinators, such as bees. We conclude that: (1) figures on the marketing/use of these chemicals should be harmonized, centralized and publicly available, (2) research should be devoted to clarifying how pollinators are exposed to VMPs and Biocides, (3) toxicity studies on bees should be carried out, and (4) pollinators should be considered as non-targeted species concerning the environmental risk assessment before their marketing authorization. We propose the term “Multi-use substances” for active ingredients with versatile use.

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Agrochemical Mixtures Detected on Wildflowers near Cattle Feed Yards

Cited by 26 publications

References 32 publications

Ractopamine in particulate matter emitted from beef cattle feedyards and playa wetlands in the Central Plains

Ractopamine in particulate matter emitted from beef cattle feedyards and playa wetlands in the Central Plains

Agrochemical occurrence on colocated wildflowers and wild bees collected near beef cattle feed yards and row crops

The threat of veterinary medicinal products and biocides on pollinators: A One Health perspective

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