How soon after applying a herbicide should the sprayer tank be cleaned out?

• A. Immediately
• B. Only when changing to a different herbicide
• C. Weekly
• D. Prior to the next use

Answer: (A)

Preventing cross-contamination and ensuring the spray system is clean for the next use is what this item emphasizes. Cleaning the sprayer tank immediately after applying a herbicide removes any remaining product before it dries or sticks to surfaces, making it easier to remove and reducing the risk of residues affecting later applications or non-target plants. Delaying cleaning increases the chance of residue buildup, potential mixing with future products, and unintended injury to crops or the environment. While cleaning between products or on a set schedule matters, doing it right away minimizes carryover and keeps the equipment ready for accurate, safe applications.