Removing old grass when performing a lawn renovation can be a hard and exhausting chore. Tilling it under can leave large clumps in your planting area which take extra effort to break up. By killing off old grass with a non-selective herbicide that contains glyphosate, you can seed directly into the old turf using a slit seeder without tilling the ground. This will save you the effort of re-leveling the planting area once it is tilled.
Put on protective clothing that includes long pants, long-sleeved shirt, shoes, safety glasses and gloves. This will protect your body from the non-selective herbicide.
Read the label of the non-selective herbicide to understand the mixing directions. Mix the correct amount of herbicide concentrate with water in your pump-up sprayer.
Prime your pump-up sprayer and spray your grass until the foliage looks wet. Spray in smooth back-and-forth motions to ensure total coverage.
Watch your grass closely over the next week to ensure you achieve a total kill as desired.
Repeat the spraying process two weeks after the first application to areas that are still actively growing.