Sprayers and herbicides are essential tools for habitat managers that provide precise, efficient control of plant competition that other methods alone cannot achieve. They help manage invasive and aggressive species, reduce labor and long-term costs, and allow season-specific, targeted management to guide plant communities. Proper use improves habitat quality, forage diversity, and wildlife response for deer, turkeys, and pollinators. When applied responsibly, sprayers and herbicides are foundational tools that produce better, more predictable habitat outcomes. Below are a few tips to help increase longevity and keep spray rigs working efficiently and accurately.
After Every Use (Critical for Herbicides)
After each spraying job, the system should be triple rinsed to prevent herbicide carryover. Completely drain the tank, then fill it with clean water, circulate through the booms, and drain; repeat this process two more times. When using products such as dicamba, 2,4-D, or residual herbicides, follow the rinse with an ammonia-based or labeled commercial tank cleaner. Pay special attention to flushing boom ends and dead-end hoses, as these areas commonly trap chemical residue. Nozzles, screens, and strainers should be removed and cleaned separately using only a soft brush to avoid damage.
Nozzles & Spray Accuracy
Nozzles should be replaced on a regular schedule, as herbicide wear can lead to over-application and uneven coverage. Always match nozzle type to the herbicide being applied—coarse or ultra-coarse droplets are best for drift-prone products, while air-induction tips are recommended for volatile herbicides. Never clean nozzles with metal objects, as this alters the spray pattern and compromises accuracy.
Pump & Plumbing Care
Routine inspection of the pump and plumbing system is essential. Check pump seals and diaphragms for swelling or leaks caused by chemical exposure and change pump oil at manufacturer-recommended intervals when applicable. Pressure fluctuations during spraying often indicate internal chemical damage and should be investigated promptly. Use only chemical-rated hoses and gaskets to ensure long-term compatibility with herbicides.
Filters & Screens
Proper filter maintenance helps protect nozzles and maintain consistent flow. Clean the tank strainer first, followed by section strainers and then nozzle screens. Make sure the screen matches the nozzle requirements to prevent restriction or uneven pressure. Cracked or warped screens should be replaced immediately, as herbicides can degrade low-quality plastic over time.
Cross-Contamination Prevention
Whenever possible, dedicate sprayers to specific herbicide classes, especially growth regulators. Clearly label sprayers and tanks by chemical type to reduce the risk of mistakes. Avoid switching between broadleaf-sensitive and grass-safe crops without a complete cleanout.
Calibration & Inspection
Calibration should be performed at the start of each season, and any time nozzles are changed. Regularly check boom height and nozzle spacing to ensure uniform coverage. Inspect solenoids and check valves for leaks, as dripping nozzles can cause crop injury.
Storage & Off-Season Care
Never store herbicides in the tank. Before storage, flush the system with a cleaner followed by clean water, then fully drain or winterize with RV-grade antifreeze. Store the sprayer indoors or under cover to minimize UV damage and leave valves slightly open to prevent seal compression during long periods of inactivity.
Safety Reminders
Always wear chemical-resistant gloves, goggles, and an apron during cleanout procedures. Dispose of rinse water according to herbicide labels and local regulations, and maintain detailed herbicide logs documenting applications, cleanouts, maintenance, and nozzle changes.