What type of agent can be added to a herbicide mixture to help it penetrate plant surfaces?

Adjuvants are substances added to pesticide formulations, including herbicides, to enhance their effectiveness and performance. In the context of herbicide applications, adjuvants play a crucial role in improving the ability of the herbicide to penetrate the protective barriers of plant surfaces, such as the cuticle. This can involve modifying properties like the surface tension of the spray solution, increasing adhesion, or enhancing the overall uptake of the active ingredient by the plant.

In agriculture and pest management, using the correct adjuvant can significantly increase the efficacy of the herbicide, ensuring better control of targeted weeds and minimizing the potential for off-target effects. It's important to choose the appropriate type of adjuvant based on the specific needs of the herbicide and the characteristics of the plants being treated.