pesticide, active ingredient, concentrate, small batches
Small hand-pump spray bottles of pesticide in a “readyto- use” dilution are commonly available as a convenience for consumers. Frequently they contain lower concentrations of pesticide than would be recommended for an agricultural use. This is a safety precaution because it is assumed that consumers may over-apply the product. Ready-to-use products may add convenience, but generally they are much more expensive than concentrated products based on the amount of active ingredient. Mixing your own dilutions from concentrated pesticides allows you to choose the concentration of active ingredient, often at a much lower price than pre-mixes.
Carlson, Gregg and Wilson, Jim, "Mixing Small Batches of Pesticide
(based on percent active ingredient)" (2005). SDSU Extension Extra Archives. 357.