Potential environmental risks associated with the new sulfonylurea herbicides

Cherry trees were exposed to chlorosulfuron in response to claims that drifting sulfonylurea herbicides cause crop losses by disrupting plant reproduction. Yield reductions were observed at application rates of 0.000023 M with no vegetation damage. Higher concentrations reduced yield to a greater ex...

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Bibliographic Details
Published in:Environmental science & technology 1993-10, Vol.27 (10), p.2250-2252
Main Authors: Fletcher, John S, Pfleeger, Thomas G, Ratsch, Hilman C
Format: Article
Language:English
Subjects:
Agrochemicals products
Agronomy. Soil science and plant productions
Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on plants and fungi
FITOTOXICIDAD
Fundamental and applied biological sciences. Psychology
HERBICIDAS
HERBICIDE
HERBICIDES
OREGON
Other agrochemicals used in plant protection (herbicides, fungicides, etc.)
Phytopathology. Animal pests. Plant and forest protection
PHYTOTOXICITE
PHYTOTOXICITY
Pollution effects and side effects of agrochemicals on crop plants and forest trees. Other anthropogenic factors
Pollution effects. Side effects of agrochemicals
PRUNUS AVIUM
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Summary:Cherry trees were exposed to chlorosulfuron in response to claims that drifting sulfonylurea herbicides cause crop losses by disrupting plant reproduction. Yield reductions were observed at application rates of 0.000023 M with no vegetation damage. Higher concentrations reduced yield to a greater extent and resulted in leaf chlorosis and eventual death of treated branches. The high sensitivity of this species toward chlorosulfuron indicates that small quantities of the herbicide, such as that typical in airborne drift, may impact plant reproduction withput altering vegetative growth.
ISSN:0013-936X
1520-5851
DOI:10.1021/es00047a037