Record Display for the EPA National Library Catalog
RECORD NUMBER: 770 OF 1150
|OLS Field Name||OLS Field Data|
|Main Title||Potential Environmental Risks Associated with the New Sulfonylurea Herbicides.|
|Author||Fletcher, J. S. ; Pfleeger, T. G. ; Ratsch, H. C. ;|
|CORP Author||Corvallis Environmental Research Lab., OR. ;Oklahoma Univ., Norman.|
|Additional Subjects||Sulfonylurea compounds ; Environmental impacts ; Risk assessment ; Pesticides ; Herbicides ; Pesticide drift ; Pesticide kinetics ; Toxicity ; Distribution patterns ; Application rates ; Phytotoxicity ; Plant growth ; Reprints ; Chlorsulfuron ; CAS 110020-51-4|
The first sulfonylurea herbicide, chlorsulfuron was introduced in 1982. Members of this new herbicide class are known for their high toxicity toward plant growth, low application rate, extremely low toxicity to humans and other animals, and phytotoxicity reported due to the inhibition of a single enzyme (acetolactate synthase). There are some anecdotal claims from certain regions of the United States that drifting sulfonylureas have caused crop losses by disrupting normal reproductive processes. The authors have used fruit yield on cherry trees as a model system to evaluate the influence of sulfonylureas on plant reproduction.