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US 9,775,357 B2Granted
Low-concentration phytotoxic micronutrient compounds for selective control of invasive plant species
OwnerStuart Jenningsinventor
Life of this patent
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Abstract
This invention provides low-dose, low-concentration formulations of phytotoxic trace inorganic compounds for use in methods and systems for selectively and effectively controlling invasive plants.
Claims6
A method for selectively controlling growth of at least one invasive plant species existing in a perennial grass community, comprising:
- applying copper to an area of the perennial grass community to achieve a soluble copper concentration in soil of the perennial grass community from about 0.1 milligrams per liter to about 50 milligrams per liter, and wherein said copper is phytotoxic to the at least one invasive plant species while preserving the growth and vigor of the perennial grass;
- wherein said at least one invasive plant species is selected from the group consisting of cheatgrass.
A method for negatively impacting the growth of at least one invasive plant species, comprising the selective control of the invasive plant species, existing in a perennial grass community rangeland, while preserving the perennial grass community species, comprising:
- applying copper to an area of the perennial grass community to achieve a soluble copper concentration in soil of the perennial grass community from about 0.1 milligrams per liter to about 50 milligrams per liter in the uppermost about 1 inch of soil, and wherein said copper is phytotoxic to the at least one invasive plant species while preserving the growth and vigor of the perennial grass, wherein the at least one invasive species is cheatgrass.
Dependencies are inferred from the claim text.