Patent ID: 8568774

Claim:
A process for inhibiting growth of a plant comprising: forming a homogeneous storage stable gas-evolving pelletized composition comprising: an herbicide present from 0.05 to 50 total weight percent; an acid; a gas-evolving acid neutralizing agent of at least one of an inorganic carbonate, inorganic bicarbonate, alkaline peroxide, or alkaline azide present from 1 to 60 total weight percent; and a water-soluble biomaterial desiccant homogeneously intermixed with said acid and said gas-evolving acid neutralizing agent; said water-soluble desiccant present in an amount able to absorb an ambient moisture equivalent to at least 0.01 total weight percent of the composition as formed before gas evolution of more than 50% of the theoretical composition; a surfactant foaming agent present from 0.1 to 10 total weight percent; a foam stabilizing agent said acid, said gas-evolving neutralizing agent, said foaming agent; and said water-soluble desiccant cumulatively having less than 1 total weight percent water; wetting the plant with water; spreading said composition onto the plant; allowing sufficient time for said composition to absorb the water and evolve gas to form a foam containing said herbicide thereby spreading said herbicide on the plant; and maintaining said foam over time through the action of said foam stabilizing agent.