When do pesticides tend to work best regarding surface moisture?

Pesticides tend to work best under conditions of moderate surface moisture because this level of moisture can enhance the adhesion and absorption of the pesticide on the target surfaces, such as plants or soil. Moderate moisture helps to ensure that the pesticide remains effective without being washed away or overly diluted, optimizing its performance.

When the surface is too dry, the pesticide may not adhere properly, limiting its effectiveness. Conversely, high surface moisture can lead to run-off or leaching, which may result in the pesticide not reaching the intended target effectively. Variable moisture levels can create inconsistency in the application and efficacy of the pesticide, making it difficult to predict how well the treatment will perform. Therefore, moderate surface moisture is generally the ideal condition for achieving the best results with pesticide applications.