redo a lawn, how to deal with weed? - Knowledgebase Question

fremont, Ca
Avatar for wangzhiyuan
Question by wangzhiyuan
January 1, 2010
I would like to replace my current lawn(full of weeds) by a seeded new lawn (instead of sod due to price). I would avoid the chemicals due to I have a baby/kid. But I have concern after rototill the old lawn. The weed seed may still stay in the soil and hard to get rid of. Any good way to make sure the weed will not come back later from the underneath ground? THANKS!

Answer from NGA
January 1, 2010
As we mentioned in our first answer to your question, rototilling and then raking the weeds out is a good approach. Or, you can pour boiling water or boiling vinegar on the weeds to kill them off before rototilling the area. Of course, there's always hand digging, roots and all, as a way of eliminating the current weeds. After seeding your lawn and mowing the lawn twice you can spread a corn gluten meal based pre-emergent herbicide to keep weed seeds from sprouting. Best wishes with your new lawn!

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