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Primary Examiner: Hollrah, Glennon H.
Assistant Examiner:
Attorney: Kehm; Walter C.

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Title: Method for controlling aquatic weeds with N-phenylalkyl-.gamma.-hydroxybutyramide

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Claims: What is claimed is:

1. The method of controlling the growth of aquatic weeds which comprises applying to the site where said growth is to be controlled, an effective amount of an herbicidal composition comprising as the active component, an N-phenylakyl-2-hydroxybutyramide having the following formula: ##SPC3##

wherein m is 1 or 0; at least one of R.sub.1 and R.sub.3 is hydrogen and the other is hydrogen, methyl, chlorine or bromine, and R.sub.2 is hydrogen, methyl, chlorine or bromine.

2. The process of claim 1 wherein the benzylhydroxybutyramide is unsubstituted or is substituted in the para position.

3. The process of claim 1 wherein an inert carrier is employed with the benzylhydroxybutyramide and the concentration of the benzylhydroxybutyramide is between about 0.05 and about 25% by volume with respect to the inert carrier.

4. The process of claim 3 wherein the composition additionally contains at least one additive selected from the group comprising a wetting agent, a binder and a gelling agent.

5. The process of claim 3 wherein the carrier is selected from the group comprising diatomaceous earth, talc, vermiculite, kaolin, pumice, bentonite, fuller's earth, asbestos, chalk, cross-linked polyvinylpyrrolidone, alcohol, kerosine, acetone, dimethyl sulfoxide and water.

6. The process of claim 4 wherein the composition contains a non-ionic surfactant as a wetting agent.

7. The process of claim 4 wherein the composition contains a binder.

8. The process of claim 4 wherein the composition contains a gelling agent.

9. The method of claim 1 wherein 1 to 50 parts per million of the benzylhydroxybutyramide is applied to the plant situs.
Other info:

Inventors: Copes, Joseph P. (Easton, PA, US)

Application Number: 435935
Filing Date: 1974-01-23
Publication_date: 1976-02-24
Assignee: GAF Corporation (New York, NY)
Primary Class(es): 504/159 106/14.15, 106/287.25, 106/287.28, 106/287.3, 106/310, 149/108.8, 149/109.4, 508/555, 548/543, 564/151, 564/152, 564/201, 564/202
Other Classes:
US Patent Ref:

2935393	May, 1960	Luckenbaugh	71/66.
3236871	Feb, 1966	Hinman et al.	71/66.
3540875	Nov, 1970	Berger	71/67.

Other Refs: Other References: spath et al., Ber. 69B, 2727-2731, (1936).
Reppe, Chemical Abstracts, 50, 16786e.