Effect of mecoprop drift on some plant species of conservation interest when grown in standardized mixtures in microcosms

Marrs, Rob H.; Frost, A.J.; Plant, R.

doi:10.1016/0269-7491(91)90094-d

Cited by 29 publications

(45 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kinne (1955) found mecoprop to be ineffective against G. mollugo in a bird's-foot trefoil pasture in Seneca County, NY. However, Marrs et al (1991) in a UK study reported reductions in biomass, coverage and flower production following exposure to mecoprop drift. This herbicide was also found to be effective when applied at a rate of 2.0 kg a.i.…”

Section: Response To Herbicides and Other Chemicalsmentioning

confidence: 98%

The biology of Canadian weeds. 121. Galium mollugo L.

Mersereau¹,

DiTommaso²

2003

Can. J. Plant Sci.

View full text Add to dashboard Cite

Mersereau, D. and DiTommaso, A. 2003. The biology of Canadian weeds. 121. Galium mollugo L. Can. J. Plant Sci. 83: [453][454][455][456][457][458][459][460][461][462][463][464][465][466]. Galium mollugo L. (smooth bedstraw) is a long-lived perennial broadleaved plant that reproduces both vegetatively and by seed. Galium mollugo can be a strong competitor in long-lived forage crops such as bird's-foot trefoil (Lotus corniculatus L.), timothy (Phleum pratense L.), and orchard grass (Dactylis glomerata L.), as well as in short-lived forage crops such as red clover (Trifolium pratense L.) and yellow sweet-clover [Melilotus officinalis (L.) Lam.]. It is also a problem weed in spruce plantations and re-vegetation areas. Livestock typically avoid this species, allowing it to become well-established in pastures where it outcompetes more favourable species. Moreover, G. mollugo is viewed as a successful invasive species because of its ability to colonize and proliferate in areas such as established meadows where most invasive species do not thrive. In natural meadow communities, G. mollugo is often a dominant species that is capable of colonizing areas left vacant by the death and/or displacement of other species. Under favourable conditions, G. mollugo growth and clonal expansion can increase rapidly. Galium mollugo is generally tolerant to herbicides such as 2,4-D, MCPA, 2,4-DB, and dicamba.

show abstract

Section: Response To Herbicides and Other Chemicalsmentioning

confidence: 98%

The biology of Canadian weeds. 121. Galium mollugo L.

Mersereau¹,

DiTommaso²

2003

Can. J. Plant Sci.

View full text Add to dashboard Cite

show abstract

“…Microcosms have several advantages over both singlespecies testing and field testing. Microcosms are more realistic than single-species testing because the response of a given plant to herbicide is affected by neighboring plants [2], whereas the advantage over field testing is that background variability and vegetation heterogeneity can be minimized [7]. By grouping species with similar life-history traits, relative growth rates, or competitive ability, it is possible to interpret results and draw meaningful conclusions more easily ( [14] and references therein).…”

Section: Introductionmentioning

confidence: 98%

“…While these guidelines now allow for the use of noncrop species, crop species have traditionally been used in these tests. Single-species testing is limited because no assessment of competitive interactions is possible and the effects on ecosystem functioning cannot be evaluated [7,12]. Several studies have found that exposure to low levels of herbicide can modify the performance (generally measured in terms of relative reductions in biomass compared to control plants) of some species, suggesting that competitive interactions between species may potentially be altered by exposure to herbicides [1,2,7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Despite these difficulties, research undertaken in both Europe and North America has clearly demonstrated that herbicides and other agrochemicals can have adverse direct impacts on plants and habitats as well as indirect effects on wildlife [4][5][6]. A number of studies have shown that exposure to herbicide spray drift and proximity to high-intensity agriculture fields can alter the structure of nontarget plant communities in favor of introduced and invasive species, particularly grass species [1,2,[7][8][9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of the effects of glyphosate and atrazine herbicides on nontarget plants grown singly and in microcosms

Dalton

Boutin

2010

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

Intensification of agriculture and the corresponding increase in herbicide use has led to concern regarding the effects these chemicals may have on nontarget plants of agroecosystems. Current pesticide registration guidelines are focused on testing crop species grown singly in pots under greenhouse conditions and may not provide adequate measures of protection to noncrop species. The objective of the present study was to compare the response of terrestrial and wetland plants to the herbicides glyphosate and atrazine when grown singly in pots versus under different microcosm conditions. Greenhouse microcosms were generally more sensitive than single-species tests. Plants grown for an extended test period or in seminatural field conditions were generally less sensitive to herbicides. Sensitivity was found to be dependent on interactions between species and test conditions. Changes in community structure were observed in herbicide-treated microcosms that would not be predicted from single-species testing. Single-species tests are useful because they are inexpensive, can demonstrate clear dose-response patterns uncomplicated by other factors influencing growth, and are able to provide a measure of the sensitivity of a given species to glyphosate and atrazine. However, they are unable to predict subtle changes in community structure that may have important long-term consequences.

show abstract

“…However, the use of certain non-systemic contact fungicides (e.g. captan, thiram) is permitted by some regulatory authorities (24). If seed-borne pathogens are a concern, the seeds may be soaked briefly in a weak 5 % hypochlorite solution, then rinsed extensively in running water and dried.…”

mentioning

confidence: 99%

Test No. 227: Terrestrial Plant Test: Vegetative Vigour Test

2006

OECD Guidelines for the Testing of Chemicals, Section 2

View full text Add to dashboard Cite

show abstract

Effect of mecoprop drift on some plant species of conservation interest when grown in standardized mixtures in microcosms

Cited by 29 publications

References 9 publications

The biology of Canadian weeds. 121. Galium mollugo L.

The biology of Canadian weeds. 121. Galium mollugo L.

Comparison of the effects of glyphosate and atrazine herbicides on nontarget plants grown singly and in microcosms

Test No. 227: Terrestrial Plant Test: Vegetative Vigour Test

Contact Info

Product

Resources

About