The disclosure relates to methods for the formation of microcapsules that include (i) a high concentration of agriculturally active ingredients selected from the group consisting of fungicides, insecticides, nematocides, miticides, biocides, termiticides, rodenticides, arthropodicides, and herbicides and (ii) a lipophilic polymer encapsulated within a polymeric shell formed via an interfacial polycondensation reaction, wherein the monomer of the lipophilic polymer is selected from the group consisting of methyl acrylate, ethyl acrylate, or butyl acrylate, and the polymeric shell forming material is selected from the group consisting of polymethylene polyphenylisocyanate, ethylene diamine, diisocyanates or polyisocyanates. Particularly disclosed is a method of synthesizing a microcapsule, comprising the steps of: (a) creating a lipophilic phase, said lipophilic phase including: (i) a lipophilic polymer selected from the group consisting of polymeric acrylates, preferably selected from the group consisting of methyl acrylate, ethyl acrylate, or butyl acrylate, polyvinyl acetate homopolymers and copolymers and styrene butadiene latex (ii) a dissolved solid lipophilic agriculturally active ingredient dissolved in an oil solvent wherein the agriculturally active ingredient is selected from the group consisting of fungicides, insecticides, nematocides, miticides, termiticides, rodenticides, arthropodicides, herbicides, and biocides, and (iii) a lipophilic shell forming material, wherein the lipophilic shell forming material is selected from the group consisting of: diisocyanates and polyisocyanates, preferably selected from the group consisting of polymethylene polyphenylisocyanate, ethylene diamine, diisocyanates or polyisocyanates (b) emulsifying said lipophilic phase in the presence of water to from an oil-in water emulsion and (c) forming a microcapsule suspension via an interfacial polycondensation reaction including the steps of adding a water soluble shell forming
