What is the primary function of buffers in pesticide solutions?

Buffers play a crucial role in pesticide solutions by maintaining the pH at a specific level, which is vital for the stability and effectiveness of the pesticide. Certain pesticides are highly sensitive to pH changes, and their activity can be significantly impacted if the pH is allowed to fluctuate. A buffer works by resisting changes in pH when small amounts of an acid or a base are added, thus ensuring that the pesticide remains within its optimal pH range for best performance.

This stability is particularly important because some pesticides may degrade or become less effective outside of their ideal pH range, which could lead to ineffective pest control. By using a buffer, applicators can ensure that the pesticide solution remains effective throughout its use.

The other options do not accurately describe the primary function of buffers. Increasing pH, diluting concentration, or making a solution non-toxic does not directly align with what buffers are designed to do in maintaining the pH stability necessary for pesticide efficacy.