Question
I live in north florida, the centepde grass is almost impossible to get rid of.  its  roots  shoot up under the house foundation and is  growing around all my wifes  plants    including  several  citurs  trees,   it  chocks  things out      what is the easiest way to get rid of it without   killing  all the   other plants or  digging up the  crap

Answer
Hi there
       All these chemical can kill centipede. But I don't know about your wife plants. So use carefully and read all instruction before use.
CMA
DSMA
MSMA
Asulam
Diclofop
Ethofumesate
Fenoxaprop
Glyphosate
Metribuzin
Pronamide
Quinclorac
2,4-D
2,4-D + Dichlorprop
2,4-D + Mecoprop
2,4-D + Triclpyr
2,4-D + Clopyralid + Dicamba
2,4-D + Mecoprop + Dicamba

Best of luck

Aman