Question
I live in Oklahoma and this year it has been very dry.  I haven't been able to water the lawn often at all, and sticker plants (I'm not sure what kind), crabgrass, and moss have choked out my lawn.  I am renting the property, so tilling it all under isn't an option.  My lawn looks terrible.  I have tried digging up the sticker plants, but they've gone to seed and it isn't working.  Do you think vinegar will do the trick?  If I cover the lawn with vinegar to kill the weeds, how long until I can put down some grass seed?  Thanks for your help.

Answer
Hi Robin;
You would have to put so much vinegar down, it would kill all the grass.
Just do an organic program, and that will take care of the weeds.
I started putting sugar on my lawn 8 or 9 years ago, and the weeds started dying out right away.
Sugar doesn't kill the grass or anything else.
What it does, is it nourishes the beneficial microbes that work round the clock enriching the lawn. Fertilizers and other chemical products you buy for the lawn, kill all these microbes, and the beneficial nematoses and insects that feed on harmful insects.
Earthworms, tunnel through the soil and keep it aerated, and their droppings ( castings) add nutrients.
Toads, lizards and other harmless critters that cannot live in your yard iif you are using chemicals,will not be able to feed on insects.
I used to spray once a month for insects, and it kind of kept them off my roses etc.
Since I stopped using chemicals, I have no insect problems.
I have no weeds in my lawn, because weeds like poor soil, and will not live long in rich soil.
If I were you, I would broadcast 4 pounds sugar per 1000 sq,ft, and water it in well.
Don't worry about the weeds.  The microbes should start reproducing and all of the family of them will work on your lawn all winter.
Apply sugar again in the spring, and next fall. Watr well each time.
Watering to a depth of at least 6 inches encourages a deep root system, and deep roots help protect against heat, cold and drought damage.
I am in North Texas, and have had the same kind of dry weather you are having up there.
I watered only once a week, and my lawn ios still nice and green.When the top 3 or 4 inches of the soil are dry, there is still moisture down where the roots are.
I just broadcast my sugar by hand, like feeding chickens.

Some other things you can broadcast around the yard,that will just add more nutrients are lava sand and alfalfa meal.
You will probably have to get the alfalfa meal at a feed store.
The poundage will be different, but you want about the same amount of coverage all over with these as you get with that 4 pounds per 1000 sq.ft of sugar.
You can even mix them all together. Don't go by weight, go by volumn, and use the 4 pounds per 100 sq.ft of sugar to measure the lava sand and alfalfa meal.
Like, one gallon bucket of each.
You can use both of them or either of them. Or just the sugar by itself will do a lot and ytou will be surprised at the results you get in your yard next year.
If you can find Corn gluten meal, you could apply that at the rate of 15 to 20 pounds per 1000 sq,ft. It wil act as a deterant to the weed seeds germinating iover the fall, and you should not get as many, if any, next spring.
The organics would be an easier, more productive, and much cheaper way for you to go.

Using white vinegar to kill weeds is good, if you want ALL the vegetation in that area killed, like cracks in a sidewalk.
But to use it all over the yard, does not work out well.
To kill the weeds in a lawn that is only about 500 sq,ft. You would need to use a couple to four gallons of white vinegar. You ahve to soak them down to the roots to kill them, and then you need very hot weather for it to be really effective.
I go with the sugar and let the microbes enrich the soil, and the rich soil getting rid of the weeds.
Charlotte

PS:
Where in Ok do you live? A lot of my family is in Atoka county.
C