The common abbreviation for each formulation is given in parentheses following the name. Many fungicide formulations are wettable powders. This is a powder consisting of solid fungicide and a wetting agent. When mixed with water it forms a suspension. Many of these suspensions settle out quickly, so an agitator is needed in the spray tank to keep the particles in suspension.
Some fungicides are now available within water soluble pouch containers.
Dusts are powders that are mixed with inert ingredients to form a product with a low percent of active material. The active ingredient is incorporated into small granules of inert material such as clay. A fungicide which is insoluble in water is dissolved in an organic solvent. An emulsifying agent is incorporated in the formulation, so that when the product is mixed with water an emulsion is formed. Flowables are insoluble fungicides ground into a very fine product, usually by a wet grinding process.