Which type of surfactants help improve spray penetration when used with systemic products?

Nonionic surfactants are effective in improving spray penetration when combined with systemic products due to their chemical properties. These surfactants do not carry a charge, which allows them to interact with a wide range of pesticide formulations and plant surfaces, enhancing the ability of the herbicide to spread and penetrate plant tissues. By reducing the surface tension of the spray droplets, nonionic surfactants facilitate better coverage and absorption of the herbicide.

In the context of systemic products, which are designed to be taken up by the plant and transported throughout its structure, the use of nonionic surfactants can significantly contribute to the efficacy of the herbicide. They help to improve the overall efficiency of the application by ensuring that more of the active ingredient reaches the target site within the plant, thereby increasing the likelihood of effective weed control.

This quality distinguishes nonionic surfactants from other types, which may not provide the same level of penetration enhancement or may interact negatively with certain formulations.