In one embodiment, a foamable solution dispenser, comprising: a foamable solution container and a mechanical foaming head, the foaming head comprising a mixing chamber configured with an air chamber, a liquid chamber and a manifold for receiving and mixing air and the foamable solution into a foam, wherein the foamable solution is disposed in the container and wherein the foamable solution comprises an active ingredient, water and a foaming agent.In a further embodiment, a foamable solution, comprising an active ingredient for application to plants, water and a foaming agent.In a still further embodiment, a foamable herbicide solution, comprising an herbicide, water and a foaming agent, wherein the foaming agent is aerobically readily biodegradable.
