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US 4,231,785 AGranted
Herbicide antidotes
AssigneeShell Oil Company
InventorLarry W. Peterson
Life of this patent
Estimating the term…
Abstract
The safety of the herbicide, cyanazine, with respect to grain sorghum, is improved by use of a selective antidote, which is a compound of the formula: ##STR1## wherein the symbols have defined meanings.
Claims5
A method for increasing the safety of the herbicide, cyanazine, with respect to a grain sorghum plant, which comprises making available to the growing sorghum plant, just before the plant is contacted with the herbicide, an effective amount of one of six antidote compounds of the formula:
- ##STR5## wherein in each of said compounds, n and R are as follows:
- ______________________________________ n R ______________________________________ 0 -- 1 3-(--Cl) 1 2-(--F) 1 3-(--CF.sub.3) 1 2-(--Cl) 2 2-(--Cl),5-(--Cl) ______________________________________
- wherein the number indicates the position of the substituent, R, on the indicated phenyl ring.
Dependencies are inferred from the claim text.