William W. Plummer wrote:

DaveC wrote:

How can one kill rooted crabgrass this late in the year without
killing everything else around it? Thanks.



I use "Crabgrass Killer". It is specific to crabgrass and does not
affect normal grass. It takes 2 or 3 applications, a week apart. It
works very well, but I also use preemergent kill in the spring.
Bonide makes the Crabgrass Killer. A pint costs about $13, but you use
only a capful per gallon. Do it now before the plants drop their seeds
-- approximately 500 to 1000 per plant.