I have been a lurker for quite a while and have gained lots of info from many of you. I could use some advise on my lawn. A little background first. I'm in Houston TX. I have St Augustine grass. My lawn was being treated by a local company. Last year we had a solid month of rain. From research here I belive the high doses of chemical fertilizer along with the wet grass caused me to get a fungus. I sent samples to a lab and learned it was "Take All Patch". I got it under control (for now) using a fungacide they told me to use. The damage killed several areas of the lawn. It has started to recover with grass beginning to fill in but the weeds got there first. I would say 80 percent of my lawn was untouched so no consideration to starting a new lawn. One of the type weeds I have is called " Green Kyllinga". I wanted to try and get them under control and used "Sedgehammer" on them. It is working but I'll know more when the lawn starts to grow more in the spring/summer. I learned here that correct mowing,watering and soil improvement using organics will be the long term cure. I have gone organic now. Just put down some Microlife organic fertilizer. Plan to use a combination of soybean,corn meal and other organics I learned about here. Now my questions. I want to use a preemergent. Is it to late here for the cool season weeds to put something down now? Some of you seem to not have much luck with the corn gluten meal. Since I do have lots of weeds in the disease stricken areas do you recommend a hybrid approach for now using a chemical preemergent and then switch to corn glutten meal after things are somewhat under control? The timing of using the preemergents is a bit confusing to me since I have no idea when the forsythia bloom here. Sorry for the long post. Thanks for any help!