Chlorosis is often the result of alkaline soil or neutral soil with a plant that needs acid soil. What kind of soil do you have? If not acid, that could be the problem. Pin Oak is also known a Swamp Oak and needs regular watering. According the link below, many of the trees available for sale in the nursery trade are grown in the south where the soil is acid and they are cultivars that are adapted to acid soil. If this was a city planted tree, call the municipal forester or your city parks department and ask where the city sourced the trees. Acidifying the soil sufficiently to grow a tree is impossible; the city should replace the trees with locally sourced cultivars or another species suited to your local conditions. Here is a link that might be useful: Pin Oak

Hi, Bob. IF I had to pick just one image editing software program to use, I would choose Paint Shop Pro. I have older versions going back to when it was owned by JASC and later by Corel. The biggest problem with the newer versions is that they DO have more features, but they are also larger programs that use more memory and hard disk storage. This is especially true for the latest version of Adobe Photoshop Elements version 5 .. which is why I purchased version 4.0 .. I wouldn't even be able to use Elements version 5 on my Dell laptop, it is such a memory hog. I also got Elements version 4.0 because it is compatible with my Logitech NuLOOQ Navigator (a hardware device to use in place of a mouse and in conjunction with a graphics tablet). I already had Elements version 2.0 on my computer. Adobe Photoshop 7.0 came bundled with some hardware I bought, possibly my WACOM Intuos graphics tablet. BTW that is a good way to end up with free copies of editing software.. watch the ads for which software programs companies are tossing in if you purchase their hardware.. graphics tablets, laser mice, scanners, photo printers, etc. Elements 4.0 is very good for making quick edits, Auto Enhance, etc. And a nice feature of this is you can also get a more detailed editing window if you choose to, where you have emore control over the editing. I think the big difference between Adobe Elements and Corel PSP is that there are more online places to go get free downloads and tutorials and Plug-Ins for Adobe Elements. Also, many of the Adobe Photoshp Plug-Ins will work in Elements. And some of the Plug-Ins from Adobe WILL also work in Corel PSP. There are more books written for the Adobe products, too. An excellent manual for Adobe Photoshop Elements 4.0 is "Photoshop Elements 4: the Missing Manual", by Barbara Brundage. This weekend, when I have more free time, I will go thru both my Corel PSP and Adobe Elements programs and give you a better comparison. I learned to Image Edit on JASC Paint Shop Pro so have the most familiarity with it. If you stay behind the latest upgrade by a version, you can get it cheaper once a newer version comes out. And you can buy used software at Amazon.com and eBay. It is almost annoying how fast the companies keep coming up with upgrades for their image editing software. Makes it harder to learn the programs and get a feel for what is where in the layout. Gail R (WNY)

Beautiful clear pic, well done! Lynne

You got what I had before I discovered corn meal. Corn meal finally got me over the hump and the grass is absolutely normal in that spot now. You can put down new sod every week, but it's going to die. You have to get rid of the disease. Once that happens, you will not need to redo it with new sod. The sod that's there will come in fine. Your soil pH is perfect for St Augustine. Don't waste your money trying to fix it. What that indicates is your soil is made of calcium sand instead of silica sand. You can pour straight sulfuric acid on it from now on and all you'll get is a deeper hole where the sand dissolves. Much of Texas soil is 8+ and St Aug absolutely thrives. Your problem is water retention...if you call that a problem. Actually your problem is you continue to water despite your water retentive soil. Clearly your initial watering routine is going to have to be different from the "normal" 3x per day routine. If your roots are knit into the underlying soil, back off on watering. Watch the grass for signs of wilting. When it wilts, then water and start watching it again. This time of year I would be looking at watering once every 3-4 WEEKS. If it has been at least 3 weeks since you used a fungicide, then you might want to try corn meal along with a light dusting of finished compost. A light dusting of compost means 1/2 to 1 cubic yard per 1,000 square feet - or even less. The reason corn meal works against disease is that as the corn decomposes on the soil, a beneficial (predatory) fungus appears on the corn. That predatory fungus will destroy the disease fungus. The trick is that you have to have at least some of the predatory fungus in your soil to begin with. By applying a chemical fungicide, you usually kill off the beneficial fungi leaving none behind to keep the disease out. Compost will reintroduce the beneficial fungi to the soil which will then populate on the decomposing corn. Corn takes 3 full weeks to show any improvement. The improvement will be that the new grass will grow to full height without getting any spots or lesions on the blades. You can see the spots in your second picture of the second post near the top of the image. St Aug should have no spots whatsoever. Here are some pictures. The first is normal and the second shows the fungal disease spots. As I recall these two pictures were of the same area taken about 6 weeks apart before and after (or after and before) corn meal treatment. Okay so generally here's how you care for St Augustine. Water. Deeply and infrequently. Deep means 1 inch all at one time. Infrequently means once per week with temps above 90, once every 2 weeks with temps in the 80s, once every 3 weeks with temps in the 70s, and once every month the rest of the year. In your case you might be able to stretch these frequencies out some. Mowing. Mulch mow at your mower's highest setting every week or two. In the spring when it's growing very fast, you might need to mow 2x per week. Tall St Aug is much healthier and needs less water and fertilizer than short mowed grass. St Aug can be extremely healthy at 32 inches tall (I have pictures), so letting it get up to 5 or 6 inches is not a problem. Fertilizer. Once on Memorial day, once on Labor Day, and once around Thanksgiving. Seeing as how you're so far south you might move these to once in early May, once in late Sept, and once around Christmas.