Title: Benthic semi-barrier to control the growth of weeds in aquatic environments

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Claims: I claim:

1. An ecologically harmless method of limiting weed growth in selected areas of the bottom of a body of water comprising the steps of:

placing a noncorrosive foraminous screen, having a plurality of generally uniform apertures, on an area to be treated upon existant plant life and in a co-planar relationship with the bottom of the body of water;

maintaining said noncorrosive foraminous screen in close proximity and co-planar relationship with the bottom of the body of water;

inhibiting plant growth in the area beneath said noncorrosive foraminous screen by,

shielding said area from a substantial degree of the sun's rays with said noncorrosive foraminous screen; and

limiting plant size in an area beneath and through said noncorrosive foraminous screen by,

limiting the size of plant stems which extend through the foraminous screen to the size of the apertures in said noncorrosive foraminous screen.

2. An ecologically harmless method of limiting weed growth in selected areas of the bottom of a body of water as defined in claim 1 wherein:

said step of placing comprises placing a noncorrosive foraminous screen in position in close proximity with the bottom of the body of water wherein said foraminous screen has a porosity comprising approximately 400 apertures per square inch.

Other info:

Inventors: Mayer, J. Richard (Fredonia, NY, US)

Application Number: 676965
Filing Date: 1976-04-13
Publication_date: 1977-11-08
Assignee:
Primary Class(es): 405/302.7 47/31, 405/258.1
Other Classes:
US Patent Ref:

1382069	Jun, 1921	Eckart	47/9.
3151463	Oct, 1964	Talbott	61/1.
3830066	Aug, 1974	Larsen	61/3.
3844123	Oct, 1974	Larsen	61/3.

Other Refs: Ad.55,8192,131,647

Sep, 1952	FR
Dec, 1971	DT

Primary Examiner: Nunberg, Casmir A.
Assistant Examiner: Corbin, David H.
Attorney: Byrne; John J., Dyson; Edward E.