What is the function of resin acids in some pesticides?

Resin acids play a crucial role in enhancing the effectiveness of pesticides. Their primary function is to improve the residual effectiveness of the pesticide, which means they help the chemical remain active for a longer period after application. This increased longevity can lead to more effective pest control, as the pesticide remains available to target pests over time.

Additionally, resin acids can assist with pest penetration. This means they help the active ingredients in the pesticide to more effectively reach and affect the targeted pests, often by aiding in the absorption of the pesticide through plant surfaces or by enhancing the spread of the application.

While it may seem appealing to have a pleasant smell in pesticides or visually improved formulations, these factors do not contribute to the primary function of pesticides in pest management. The focus is instead on efficacy and penetration rather than sensory attributes or aesthetic qualities.