In DRY pesticide formulations, concentration of active ingredients is described as what?

• A. Pounds, per gallon
• B. Percent, by weight
• C. Percent weight
• D. Grams per kilogram

Answer: (B)

In dry pesticide formulations, concentration is described as percent by weight. This means the active ingredient is expressed as a percentage of the total product weight, which is the most stable and clear way to convey how much active material is present in a solid mix. Since powders and granules are weighed rather than measured by volume, using weight percent provides a consistent standard across lots and labels. Pounds per gallon is a liquid labeling measure and doesn’t apply to dry products. Grams per kilogram is a weight-based ratio, but it is not the typical labeling convention used for dry formulations, where percent by weight is the standard way to express concentration.