Hi all, We have a ~25 yr old orange tree here in the SF Bay Area that started turning yellow a few weeks ago in the middle of a summer heat surge and has since has begun to lose leaves by the gross and drop the remaining oranges it held from last winter. I don't see any new fruit budding either and the top of the tree is becoming bare. We changed the watering around in the early summer and it may be getting more water from a nearby sprinkler than it has before. We tested the soil on one side and found it very moist. We put in some fertilizer sticks and have redirected the sprinkler starting a few days ago but wonder if it's too late to save it (as you see, we're assuming it's overwatered). Any advice - is it too late to save the tree??