Which liquid pesticide formulation typically contains a small amount of active ingredient, often 1% or less per unit volume?

The correct answer is based on the characteristics of ready-to-use (low concentrate) solutions. These formulations are designed for convenience and ease of application, typically containing a diluted active ingredient concentration of 1% or even less. This allows consumers or applicators to use the product immediately without the need for further mixing or dilution.

Ready-to-use solutions are often preferred for smaller-scale applications or household purposes, where precise measurement and mixing might not be practical. The low concentration in these formulations is effective for control of pests while minimizing the risk of over-application, making them safer for use in residential areas and around pets and children.

In contrast, concentrate solutions are formulated with a higher percentage of active ingredients, requiring dilution before use. Ultra low volume products are designed to be applied at very low volumes per unit area, but they can still contain a higher concentration of active ingredient. Powdered formulations usually involve an entirely different set of application methods and do not fit the description of containing low concentrations of liquid active ingredients.