Which is a disadvantage of EC and ULV formulations?

• A. A Contribute to abrasive wear of nozzles and pumps
• B. B None of the above
• C. C Solvents may cause rubber or plastic hoses, gaskets, and pump parts and surfaces to deteriorate
• D. D Require constant agitation to keep in suspension

Answer: (C)

EC and ULV formulations are solvent-based, which means their components can attack rubber or plastic hoses, gaskets, and pump parts. That solvent exposure can cause deterioration, swelling, or cracking over time, leading to leaks and equipment failure. That’s why this is considered a disadvantage: you must ensure hardware materials are compatible with the formulation and routinely inspect for signs of solvent damage. Other issues like abrasive wear or constant agitation aren’t universally tied to EC or ULV products, making solvent-driven deterioration the best-fitting disadvantage.