Question
I have recently purchased a house where the dominant grass is centipede.  In the back yard I have many rather large spots of bermuda growing.  I live in eastern Nc on the coast and have been reading that any market weed and feed will kill either or but there are no majic bullets for both.  The previous owner did not keep up the lawn in the back and there are bare spots along with many other weeds, etc.  What can I do to get my lawn one species of grass and remove the weeds without killing my lawn in the process?

Answer
Hi Gregg;
Go organic.
Weeds love poor soil and will not thrive in rich soil.
sugar and dry molasses nourish the beneficial microbes that enrich the soil.
Fertilizers don't enrich the soil. they feed the vegetation ( including the weeds), and wear out. then you have to reapply.
Fertilizers kill the beneficial microbes.
Chemicals kill the good insects that feed on the harmful ones, and for every harmful insect there are hundreds of beneficial ones that feed on them.
Chemicals keep out the toads, lizards and grass snakes that also eat harmful insects.
chemicals don't solve problems, they create them.
Cockroaches normally live in the soil, where they feed on harmful microscopic insects and tunnel through the soil, aerating as they go.
Chemicals kill off their food supply, and will also kill them, so they escape into our homes where they are pests, but can get food. you know the rest from there.
I now have them in my soil in droves, but I use rosemary inside the house to repel them, and I never see one im my house. I live in north Texas, which I think is their breeding grounds.LOl
Centipede grass is a variety of St. augustine, or a close cousin.
It should eventually crowd out the burmuda.
If you put more plugs of it in, it will spread even faster, and in a couple seasons or so, you should have all one grass.
I had burmuda in the yard, and planted St. augustine pulgs, and in a few years it crowded out the burmuda.
Charlotte