Pesticidal active, physical form

Pesticidal active ingredients as manufactured are, with very few exceptions, not suitable for use in agricultural applications. The reason is quite simple -the physical form of the active ingredient obtained from the chemical manufacturing process. 

The dilution of pesticidal active ingredients neeessarily involves at least one step, and will often involve two. The one-step proeess is, again, analogous to paint manufacture. Dilute the active material with something else and then apply the dilution to the desired target. For pestieidal materials this dilution is called the end-use product it is the physieal form in whieh a user such as a farmer purchases an active ingredient. The physical form for pesticides can be solid or liquid. 

Solid Active Ingredients - Some pesticide applications require a particular physical form, generally to conform with application equipment available to the grower. Granules, for example, are commonly used as the means to apply insecticides to com. A solid active ingredient can be dissolved in a solvent and then absorbed by a carrier. This is, however, often not economical. The alternative used by the pesticide industry is to use a mineral as a substrate onto which the solid pesticide is adhered. High absorbency here is not required, and in fact can be detrimental. 

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