True or False: Among nozzle materials, brass is the least resistant to wear.

Brass is indeed considered the least resistant to wear among commonly used nozzle materials. Nozzles made from brass can deteriorate more quickly than those made from other materials like stainless steel, ceramic, or plastic when exposed to abrasive particles or certain chemicals. This wear can result in reduced efficacy of the spraying apparatus, leading to uneven application or failure of the delivery system over time.

In practice, choosing a nozzle material that withstands the wear and tear associated with the specific chemicals and materials involved in pesticide application is crucial for maintaining operational efficiency and effectiveness in pest control. Other materials tend to offer greater durability and resistance to corrosion or chemical degradation, making them preferable in many applications.