Oxygen impermeable porphyrin photosensitizer film composition for application to plants

Abstract

A method for promoting the health of a plant is provided. The method includes applying a composition to a plant and removing at least a portion of the aqueous carrier from the composition for the film forming agent to form a film on the plant that is substantially impermeable to oxygen when in a non-hydrated state. The composition includes a photosensitizer that generates reactive oxygen species in the presence of light and oxygen, the photosensitizer being selected from the group consisting of a porphyrin, a reduced porphyrin and a combination thereof, a film-forming agent, an antioxidant agent, and a liquid carrier, in which the photosensitizer, the film-forming agent and the antioxidant agent are solubilized or dispersed.

Dependencies are inferred from the claim text.