What type of pesticide formulation may approach 100% active ingredients?

The type of pesticide formulation that may approach 100% active ingredients is the ultra low volume (ULV) formulation. ULV pesticides are designed to be applied in very small volumes, resulting in a high concentration of active ingredients. This allows for effective pest management while minimizing the amount of inert ingredients, which often comprise a significant portion of other formulations.

In contrast, other formulations typically contain a larger percentage of inactive ingredients. Ready to use (RTU) formulations are pre-mixed and usually contain a balanced ratio of active and inert ingredients for consumer convenience. Suspensions and granular pesticides also contain inert materials necessary for their functionality and application ease, which dilutes the concentration of active ingredients. Therefore, ULV formulations are specifically engineered for high potency and efficiency in pest control, making them unique among pesticide types.