Lawn Herbicides: How Long Before Rain for Optimal Effectiveness and Timing?
For best results, apply lawn herbicides like Roundup on dry, warm days. Wait 30 minutes to 3 hours for drying before rain. Drying time changes with temperature and wind; warmer, calm conditions speed up drying. Always check product labels for specific instructions to ensure effectiveness. If the rain arrives too soon, it can wash away … Read more