looks like 2 leaves are having a problems..and the rest of the tree is just fine ...

looks like sunburn from this distance.. is it properly watered.. or in drought??

i dont see the second pic.. maybe you are still sending it ..

ken

no second pic...

anyway... we in MI are in drought.. all the lawns are browning out.. if this was a recent transplant i would recommend a good deep watering...

where are you.. big city name.. include such in every post....

lets see the whole tree.. maybe that the second pic.. also a better close up or the damaged leaf...

those 2 leaves are stressed.. not hungry.. fert is not a response ...

is there any other current relevant history that might help us.. help you..

ken

Just added more details and the second picture. Could be the drought ? Too superficial watering ?

Hmm it seems I will need to water this guy in particular and not rely on the sprinklers. I was checking some older pictures and it seems that it had a similar problem in the past (could also be too much sun )

As you can see in the picture the grass is doing good although we too have been in a dry period that ended up yesterday after like a month of drought here in Toronto.

I was afraid I might over water it

I will give that a try thank you.

For those like me who are wondering what "slow deep and infrequently" means here is a good article

https://wateruseitwisely.com/blog/questions-answered-water-deeply-but-infrequently-what-does-that-mean/

" If you see moss, algae, or have mushrooms growing, it’s a sign the ground never dries enough between watering. "

well I am seeing a couple of mushrooms these days here and there in the lawn which tells me that those 10 minutes are probably too much or too often but not deep enough ???

" If you see moss, algae, or have mushrooms growing, it’s a sign the ground never dries enough between watering. "

Not sure were this statement came from but it is not true. Algae does need a moist growing environment but moss can and does live in very dry environments. Which explains why it can grow on rocks and why the moss in my lawn can survive 3 plus months of summer drought.

And mushrooms are just a biological stage of naturally occurring fungi and moisture is not a requirement for their existence either. They will appear whenever conditions are right. Which may or may not involve soil moisture.

Also it is not practical to derive an understanding of good watering practices from a book or article. The determination of what is appropriate in terms of frequency and duration of any watering/irrigation is unique to each individual garden. It is determined by soil conditions, the climate/weather, the method you use and what you are growing. No two situations will be the same so that information can't be predicted or prescribed.

While you might be right I do believe that the nature does not run by these scientific determinations so more water than what nature provides can't hurt if this is not excess but rather complimenting what the nature provides

Are you saying more water cannot hurt, if it is not excessive, because nature provides waters too.? I think that may be anthropomorphising nature. Using your imagery nature' also "withholds "water, and "causes" floods. For your purposes just follow science based advice for planting and watering and leave "mother" nature to writers and poets and your own moment of wonder. I hope there are many of those.

I mean naturally watering by rain is pretty chaotic in terms or when and how much. Despite of these the plants around us are still alive which means that watering your plants once ever X number of days, keeping tabs how much and how often on that day is our pedantic exaggeration in trying to complement nature (either if you accept or not the term mother nature)

here are some cultural references https://en.wikipedia.org/wiki/Mother_Nature just in case you want to paddle more on that topic