fat/thick tips on pear branches going into dormancy
I have noticed on and off that sometimes my young pear trees will show a noticeable bulge or thickening at the tips of the branches going into dormancy.
It seems to be a very localized swelling just around the terminal bud, about doubling in diameter. And is most common on shoots that have shown good strong growth that year. I don't think I have observed it on any spindly side growth.
I don't think I have yet noticed a correlation to winter damage or spring growth change on the effected tips;but I have just started to pay attention to it as I have noticed more the last few years. I believe it is overgrown with the spring flush, as I cannot see remnants of it "down branch"
Any insight into what I am observing? Perfectly normal? Weather induced? Insect or disease related?
thanks for your thoughts