Okay, so I normally don’t post on the same blog topic twice in the same spring but we are seeing symptoms of fire blight showing up in pear and apple trees so it’s time to take a close look at your trees NOW!!! Carefully inspect if there is any evidence of browning (apple) or blackening (pear) of dead plant tissue.
If you are not familiar with fire blight symptoms, read the USU Pests factsheet linked below.
I also asked Marion Murray about a tree I looked at in Salt Lake yesterday that had some blackened spots on the leaves. I found her response to be very helpful so I wanted to share it with you too!
“That does look like fire blight but the infections most likely happened during a rough windy day, rainy weather; through little wounds. I saw this on some other trees too, but it’s not a common mode of infection in Utah.”