Thank you,
plant Doctor! I had done some reading on it a month ago, and thought that may have been it. But, I couldn't tell. Someone came to our door, offering to mow the lawn, and told my mother that *I* had put down the crabicide "too soon" and that was why we had "crabgrass." Made absolutely no sense to me, given the time I'd put it down, and when the crabgrass came up (within a couple of weeks. Since it creates a barrier, as you described, I couldn't figure *how* putting it down "too soon" would have caused them *to* grow two weeks later. If anything, it could have been too late (but, as I said, it was still very very cold. It is still unseasonably cold for this time of year for us.)
Thank you very much for your reply! I'm going to try to treat the quackgrass. If I put the round-up only on the leaves (and don't spray it), do you think that if I grow grass in a trays, it will transplant well in the spots where I kill the quackgrass? Is quackgrass overpowering to fescue (i.e., will it overtake the lawn the way crabgrass does)?
One last question, since we are having an unseasonably cool
spring, should I put down another treatment of crabicide at some point this year? I had read at some site or other, that the crabicide lasts for "x" number of weeks.
Thanks, again!