AGROCHEMICALS IN FIELD MARGINS—ASSESSING THE IMPACTS OF HERBICIDES, INSECTICIDES, AND FERTILIZER ON THE COMMON BUTTERCUP (<i>RANUNCULUS ACRIS</i>)

Schmitz, Juliane; Schäfer, Karoline; Brühl, Carsten A.

doi:10.1002/etc.2138

Cited by 39 publications

(36 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The reduction in flowers is likely to result in decreased seed production, which may cause potential changes in plant community composition, particularly if E. perfoliatum and other susceptible broadleaf plants in field margins receive repeated exposures of herbicides over time. Indeed, plant communities have been shown to change in response to herbicide exposure over multiple seasons, including reductions in broadleaf plant species and the overall broadleaf community, changes that can then influence associated arthropod communities .…”

Section: Discussionmentioning

confidence: 99%

Effects of the herbicide dicamba on nontarget plants and pollinator visitation

Bohnenblust

Vaudo

Egan

et al. 2015

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

Nearly 80% of all pesticides applied to row crops are herbicides, and these applications pose potentially significant ecotoxicological risks to nontarget plants and associated pollinators. In response to the widespread occurrence of weed species resistant to glyphosate, biotechnology companies have developed crops resistant to the synthetic-auxin herbicides dicamba and 2,4-dichlorophenoxyacetic acid (2,4-D); and once commercialized, adoption of these crops is likely to change herbicide-use patterns. Despite current limited use, dicamba and 2,4-D are often responsible for injury to nontarget plants; but effects of these herbicides on insect communities are poorly understood. To understand the influence of dicamba on pollinators, the authors applied several sublethal, drift-level rates of dicamba to alfalfa (Medicago sativa L.) and Eupatorium perfoliatum L. and evaluated plant flowering and floral visitation by pollinators. The authors found that dicamba doses simulating particle drift (≈1% of the field application rate) delayed onset of flowering and reduced the number of flowers of each plant species; however, plants that did flower produced similar-quality pollen in terms of protein concentrations. Further, plants affected by particle drift rates were visited less often by pollinators. Because plants exposed to sublethal levels of dicamba may produce fewer floral resources and be less frequently visited by pollinators, use of dicamba or other synthetic-auxin herbicides with widespread planting of herbicide-resistant crops will need to be carefully stewarded to prevent potential disturbances of plant and beneficial insect communities in agricultural landscapes.

show abstract

Section: Discussionmentioning

confidence: 99%

Effects of the herbicide dicamba on nontarget plants and pollinator visitation

Bohnenblust

Vaudo

Egan

et al. 2015

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

show abstract

“…In addition, parts of field margins can be oversprayed, leading to higher input rates. For example, within the first meter of a field margin bordering a cereal field, the mean pesticide input can exceed 30% of the field rate (see Schmitz et al for more details and a figure). Kjær and Elmegaard found that the spraying of Polygonum convolvulus plants with 33% (= 1.32 g active ingredient/ha) of the recommended field rate of a chlorsulfuron herbicide reduced the survival of leaf‐eating Gastrophysa polygoni beetles.…”

Section: Discussionmentioning

confidence: 99%

Effects of herbicide‐treated host plants on the development ofMamestra brassicaeL. caterpillars

Hahn

Geisthardt

Brühl

2014

Enviro Toxic and Chemistry

Self Cite

View full text Add to dashboard Cite

Herbicides are widely used pesticides that affect plants by changing their chemistry. In doing so, herbicides might also influence the quality of plants as food for herbivores. To study the effects of herbicides on host plant quality, 3 plant species (Plantago lanceolata L., P. major L., and Ranunculus acris L.) were treated with sublethal rates of either a sulfonylurea (Atlantis WG, Bayer CropScience) or a glyphosate (Roundup LB Plus, Monsanto) herbicide, and the development of caterpillars of the cabbage moth Mamestra brassicae L. that fed on these plants was observed. Of the 6 tested plant-herbicide combinations, 1 combination (R. acris + sulfonylurea herbicide) resulted in significantly lower caterpillar weight, increased time to pupation, and increased overall development time compared with larvae that were fed unsprayed plants. These results might be caused by a lower nutritional value of these host plants or increased concentrations of secondary metabolites that are involved in plant defense. The results of the present and other studies suggest potential risks to herbivores that feed on host plants treated with sublethal rates of herbicides. However, as the effects of herbicides on host plant quality appear to be species-specific and as there are numerous plant-herbicide-herbivore relationships in agricultural landscapes, a general reduction in herbicide contamination of nontarget habitats (e.g., field margins) might mitigate the negative effects of herbicides on host plant quality.

show abstract

“…Ranunculus acris L. (R. acris or meadow buttercup, Ranunculaceae) is a weed of old pasture and hay meadows, widely distributed throughout Europe and considered as a common plant species of the agricultural landscape (Schmitz et al 2013;Bourdot et al 2013). It is one of the most common species along the Jalle d'Eysines River course, where it was used to monitor total Ni concentration in soils, showing also a site-dependent foliar ionome (Marchand et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Potential of Ranunculus acris L. for biomonitoring trace element contamination of riverbank soils: photosystem II activity and phenotypic responses for two soil series

Marchand

Lamy

Bert

et al. 2015

Environ Sci Pollut Res

View full text Add to dashboard Cite

Foliar ionome, photosystem II activity, and leaf growth parameters of Ranunculus acris L., a potential biomonitor of trace element (TE) contamination and phytoavailability, were assessed using two riverbank soil series. R. acris was cultivated on two potted soil series obtained by mixing a TE (Cd, Cu, Pb, and Zn)-contaminated technosol with either an uncontaminated sandy riverbank soil (A) or a silty clay one slightly contaminated by TE (B). Trace elements concentrations in the soil-pore water and the leaves, leaf dry weight (DW) yield, total leaf area (TLA), specific leaf area (SLA), and photosystem II activity were measured for both soil series after a 50-day growth period. As soil contamination increased, changes in soluble TE concentrations depended on soil texture. Increase in total soil TE did not affect the leaf DW yield, the TLA, the SLA, and the photosystem II activity of R. acris over the 50-day exposure. The foliar ionome did not reflect the total and soluble TE concentrations in both soil series. Foliar ionome of R. acris was only effective to biomonitor total and soluble soil Na concentrations in both soil series and total and soluble soil Mo concentrations in the soil series B.

show abstract

AGROCHEMICALS IN FIELD MARGINS—ASSESSING THE IMPACTS OF HERBICIDES, INSECTICIDES, AND FERTILIZER ON THE COMMON BUTTERCUP (RANUNCULUS ACRIS)

Cited by 39 publications

References 28 publications

Effects of the herbicide dicamba on nontarget plants and pollinator visitation

Effects of the herbicide dicamba on nontarget plants and pollinator visitation

Effects of herbicide‐treated host plants on the development ofMamestra brassicaeL. caterpillars

Potential of Ranunculus acris L. for biomonitoring trace element contamination of riverbank soils: photosystem II activity and phenotypic responses for two soil series

Contact Info

Product

Resources

About