How to kill grass permanently???

[locoengineer]

Pramitol or prometon will sterilize the ground for 7 years or longer it works great just ask my neighbor he borrowed some fertilizer from me with out asking

[boh347]

I put a cup of Diesel & a little dish washing soap in with the roundup it will kill it. The dish washing soap is to make it stick to the grass.

Dish washing soap is a good idea.

[tookeymonster]

Diesel

will take care of it for about 7 years

[tookeymonster]

1 Gal kerosine and 1 gal gas the mixture will kill grass in 3-4 days, lay 10mm black plastic down and cover with decorative rocks.
The plastic will keep any seeds from sprouting because of the moisture and kerosine will keep them from growing.

Don't forget to light it

[clintb]

Diesel is the fastest and most productive way.

X2

[Swampa]

I would pour gasoline all over it and thick! Just don't smoke while your doing it...

Like 25 gal per 500 sq ft

[BigTex.308]

50/50 mix of gasoline and round up. Works like a charm