We have about seven pear trees of various varieties, both Asian and European. Our Flemish Beauty is getting these dark brown leaves.

dark brown patches on pear leaves

There are just a few -- about thirty or so -- and none of the other trees are affected, nor are the fruits on this tree affected. There are no obvious signs of either blister or fire blight -- no sunken patches on the bark, no weeping patches or shriveled shoots (you can see in one picture that the spur is healthy).

pear tree branch, showing dark brown leaves and unaffected spur

Could this be a disease or merely underwatering? The tree doesn't look like it's getting much less water than the others.

  • Where in the world are you? My first guess woukd be frost Aug 16, 2023 at 20:18
  • Profile info indicates Penticton, BC - 48°F/9°C is as low as it's been recently (July 26th) according to what I could find quickly.
    – Ecnerwal
    Aug 16, 2023 at 20:28
  • yeah, close to Pentiction, so definitely not frost, although I do agree it looks like that. Historically, the last frost date is sometime in May, and the first one is sometime in October or (rarely) September. Aug 17, 2023 at 15:02


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