Can you post a couple pictures? The best time to photograph a lawn is when a cloud goes overhead. It would be good to see from far enough away to see the trees and then a close up of the dry spot in the middle. Did you have Marathon in Calabasas before? If not where? And what was your watering regimen (how often and for how long)? Can we assume you are watering this lawn the same way? When were the last two times you fertilized, or have you fertilized yet? Hopefully your close up picture will help someone here to identify your current grass type. Different grasses can be eradicated by different means. Sometimes it's as simple as stopping watering. I'm not sure you will ever be able to apply enough water for those trees. That is a lot of timber to keep moist. The tool which professional landscapers use to prep a garden is a box blade pulled behind a tractor. This is what it looks like in action. The ripper bars you see on the box blade (like a rake sitting above the soil in the blade) can be used to remove most small roots, but there is a limit. When you get ready to get rid of the trees, you might want to consider major stump removal, not grinding, and root removal throughout the rest of the yard. For those two jobs they might bring in a small bulldozer or other heavy equipment.

@dodge59 - by Useless I mean they did nothing. The local repair company that Elux sent out checked to make sure it heated up properly and seemed to want to spend more time talking about how a microwave oven works, etc., which means he wasn't very knowledgeable. Vendor sent out a technician who checked the heating temp, and told me to always give a 30-min pre-heat time, so I"ve been doing that for well over a year. Neither one took the oven apart, but m best guess is the heating elements are not heating up symmetrically. @wekick - I did not use convection on the creme brulee, but the problem happens both ways. Here's another old photo of some Cornish hens, baked this past winter. It was so long ago that I really don't remember if convection was used with this batch, but I do know the same uneven browning pattern happens with convection *and* without convection. As always, everything on the right side is more browned and probably more cooked. I'm going to buy two identical oven thermometers, one for each side - toward the rear - and see what happens. Then I'll switch them and check the temp reading again, before I start making phone calls. Argh...

Wow! Just came across this thread. We have Marazzi Chateau Reserve hickory grove and same happened with our grout. I chose a grout that would blend in with tile and also chose this tile bc I wanted a very thin grout line. I have tried everything- tile brush , steam mop. Our contractor didn’t care. I will Reread this thread and try some of the options mentioned. Our tile looks great but the grout drives me crazy. It just looks dirty since it’s a lighter color. Makes me angry when I see it bc I would have never picked such a light color. Luckily - it’s only in our master bath. It’s a shame some contractors are so unscrupulous. I know there are honest ones out there, too bad we didn’t hire one .

All true but air temp isn't the only factor to affect a plant's need for water. Size of plant increases, so does water needs. Age of plant increases so does water needs. Number of fruit on the vine increases the water needs. If roots are contained then water need increases as number of roots develop. As nutrient levels fluctuate, so does water needs. As soil compacts over time water needs increase. etc. I'm not saying inconsistent moisture levels is the only possible cause, just that it is the far most common cause. Pollination issues, pest issues, and disease issues could also be contributing factors IF they exist. Dave