cosmetic leaf damage ...???

poland eh ... ???

after weeks of near 100F degrees [slightly more than your 36C ] ... and total drought for 6 weeks ... many if not all of my IN GROUND trees show some level of cosmetic leaf damage ...

how big is the plant..
what is the potting media
what is your watering regimen
is the pot in sun

ken

I have one that looks worse than that. It's better to have some plants with ugly leaves than to kill all the bugs in your yard good and bad. My q.Rubra and Q. Velutina are the worst affected this year.

Thanks for the replies. The oak tree was germinated last year from an acorn and is now 58 cm. Its media is half potting soil half sandy soil. The oak tree is watered once a week and I spray its foliage every day to reduce the chances of transpiration exceeding water uptake. I fertilize it once every 4 weeks. The pot is now position in a location that is partially shady. I have been checking for pests and although some of my sunflowers were mottled by two spotted spider mites this year I have not found any pests on the Champion oak tree. Many of the old oaks (in ground) European and Champion oak trees in my area in the woods and in gardens do seem to have similar symptoms of brown patches and leaf curling so I presume that it could be the heat and sunlight causing the patches and yellowing.