Record Display for the EPA National Library Catalog


Main Title Influence of growth regulators on pesticide uptake /
Author Devlin, Robert M.
CORP Author Massachusetts Univ., East Wareham. Lab. of Experimental Biology.;Health Effects Research Lab., Research Triangle Park, N.C.
Publisher U.S. Environmental Protection Agency. Office of Research and Development,
Year Published 1978
Report Number EPA-600/1-78-008; EPA-R-800439
Stock Number PB-276 986
OCLC Number 04042089
Subjects Plants--Effect of herbicides on ; Growth factors ; Plant growth promoting substances
Additional Subjects Herbicides ; Pesticides ; Plant hormones ; Growth regulators ; Plant regulators ; Absorption(Biology) ; Plant metabolism ; Plant physiology ; Bean plants ; Gibberellins ; Auxins ; Experimental data ; Field tests ; Bioaccumulation ; D2-4 herbicide ; Acetic acid/2-4-dichlorophenoxy ; Alamine/chlorophenyl ; Laboratory tests
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 600-1-78-008 Headquarters Library/Washington,DC 03/08/2016
ELBD ARCHIVE EPA 600-1-78-008 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 600-1-78-008 AWBERC Library/Cincinnati,OH 08/26/2016
NTIS  PB-276 986 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation viii, 22 pages : diagrams
The purpose of this study was to significantly reduce the amounts of herbicides necessary to control certain noxious weeds. In laboratory and field studies herbicides were applied with certain plant hormones to accelerate their uptake and translocation in plants. Treatment of redtop grass with IAA or GA increases its sensitivity to 2-chloro-4,6-bis(ethylamino)-s-triazine (simazine). It was also found that simultaneous application of either IAA or GA with 2-(2,4,5-trichlorophenoxy)propionic acid (silvex) enhanced the toxic efficiency of the herbicide on poison ivy. Residue analyses of plants treated with only the herbicide were compared. More silvex was found in the plants treated with IAA or GA. In the laboratory the influence of GA, 2,4-D, and parachlorophenoxy-acetic acid (PCPA) on the uptake of naptalam by bean plants was studied. Bean plants pretreated with GA via a liquid medium (root absorbed) took up and accumulated considerably more naptalam than untreated plants. The synthetic growth regulators 2,4-D and PCPA were even more active in this respect.