Abstract: A sub-soil injection device injects a soil additive, such as a pesticide, as included in a foam below the surface of soil. It concurrently distributes the foam into soil as the foam is injected resulting in an improved uniformity of distribution of soil additive in soil. The device comprises a tubular structure which mounts into the soil from a vehicle. It has first and second portions, leading and trailing portions, a lumen along its length, lateral portions and a plurality of spaced apart ports. Each port communicates the lumen with the trailing portion. Foam flowing out the ports moves backwardly. A shank structure precedes and shields the leading portion of the member. The shank structure has a forward-facing portion adapted to cut through soil. The shank structure and member are motivated by the vehicle in a forward direction through the soil. An apparatus utilizing the shank structure, the vehicle and a foam generator and a method of depositing a soil additive plowing in of foam are also set forth.

Abstract: A method is set forth of controlling pests such as termites. The method comprises mixing a residual pesticide with a foaming agent, water and air to produce a temporary non-solidifying pesticidal foam having an expansion ratio, defined as the ratio of the final foam volume to the sum of the volumes of the pesticide, the foaming agent and the water, of between 20 to 1 and 5 to 1. The foam is applied at a locus whereby it contacts a surface which defines the locus, and thereafter deposits the pesticide on the surface and dissipates, so as to provide residual pesticidal action on the surface.

Abstract: A foaming agent for aqueous solutions including full strength solutions of herbicide, insecticide, and fungicidal formulations, liquid fertilizers, and soil funigicides, consisting essentially of the following:______________________________________ Ingredient % wt. ______________________________________ 1. Sodium-2-ethyl hexyl sulfate 19.4 2. Tetra sodium N-(1,2-dicarboxy ethyl)- 11.0 N-octadecyl sulfosuccinamate 3. Sodium dioctyl sulfosuccinate 2.1 4. Water 8.6 5. Isopropanol 7.4 6. Coconut diethanolamide 4.7 7. Triethanolamine alkylaryl sulfonate 15.4 8. Dihexyl sodium sulfosuccinate 31.4 Total 100.00, ______________________________________each ingredient being varied by no more than .+-.2%.