What's with this pear?

kudzu9(Zone 8a - PNW)October 13, 2013

I have quite a few fruit trees, including several multi-graft pear trees. On one particular 4-graft dwarf pear tree that is about 5 years old, some of the fruit is misshaped and has some weird exterior cracking. I also had some pears on this tree exhibit this appearance and never get very big or ripe at all. The damage is superficial, and the fruit tastes fine. Still, I'm wondering if anyone can diagnose whether this is some type of disease, or underwatering, or something else. Thanks.

Thank you for reporting this comment. Undo

A really bad case of pear scab?

    Bookmark   October 13, 2013 at 7:31PM
Thank you for reporting this comment. Undo
kudzu9(Zone 8a - PNW)

I looked at images of pear scab after your comment, and a few showed some fruit with a couple of fissures sort of like my photos, but mostly the disease looks like scabs, so I don't know. The one other thing I recall now is that this same tree had some small bright rust spots on some of the leaves about 1/4"-1/2 inch in diameter, but without noticeable leaf damage other than the spots. So, the tree could have pear rust starting, but that usually doesn't affect the fruit, I understand.

    Bookmark   October 13, 2013 at 8:07PM
Thank you for reporting this comment. Undo
skyjs(z8 OR, USA)

I have had weirdly shaped fruit like that, and I don't know why for sure. My guess is that something was trying to eat it while it was young and growing, and the pear/tree was fighting it, but I'd love to hear from Scott or someone who actually knows.
John S

    Bookmark   October 14, 2013 at 11:26AM
Thank you for reporting this comment. Undo
geosankie(5a NEPA)

misshapen fruit is often caused by incomplete fertilization of the ovules

    Bookmark   October 14, 2013 at 4:42PM
Thank you for reporting this comment. Undo
Scott F Smith(6B/7A MD)

Bug damage on baby fruitlets causes oddly shaped fruits, e.g. stinkbugs or curculio, but the above damage seems more extreme, the calyx is coming out the side.

I would go with geosankie's idea. I have not had that on pears myself but some kiwis did that and I concluded it was a pollination issue: the fruits looked undamaged on the outside but they were just not growing on one side.


    Bookmark   October 14, 2013 at 9:57PM
Thank you for reporting this comment. Undo

That reminds me of fruit that were brought to the Home Orchard Society's All About Fruit show as a demonstration of a particular mineral deficiency. I can't remember which it was but not one of the most common.

The whole surface of the fruit looked like the black cracked area of yours. I did a quick google search and couldn't find examples. If you are interested I can inquire further.

    Bookmark   October 15, 2013 at 2:15AM
Thank you for reporting this comment. Undo
kudzu9(Zone 8a - PNW)

Thanks, I would be interested in more info. I have about 15 fruit trees of various kinds on my 1+ acre lot, and they are in pretty close proximity to one another. They are all doing pretty well, so I would be surprised if this one had a deficiency the others didn't...but who knows?

    Bookmark   October 15, 2013 at 2:42AM
Thank you for reporting this comment. Undo

If there are many fruit with this condition, you may want to spend a little time investigating. If it is only one, I'd just categorize it as one of the MANY gardening curiosities, enjoy your photo, and get back to fighting the bigger challenges.....like dealing with debt, exhaustion, ever-growing honey-do lists, etc.

    Bookmark   October 15, 2013 at 11:11AM
Thank you for reporting this comment. Undo
kudzu9(Zone 8a - PNW)

I'd say about 20% of the fruit on the tree was shrunk (never got very big), mishapen, and/or had this weird cracking. Last year I had some of the same thing, but it's a young tree and there wasn't much fruit to gauge by.

    Bookmark   October 15, 2013 at 11:39AM
Thank you for reporting this comment. Undo
Beeone(4 N. Wyo.)

It looks to me like physical damage when the pear was small, which lead to scarring on the wounds, which then didn't expand as the pear grew leading to the curled shape, although eventually the growing pear cracked the scars and re-scarred. The first picture kind of looks like the scabs follow a pattern and slight indentation like the pear was in contact with some branches--add in some wind and movement and the branches would damage the skin and lead to scarring. I've seen somewhat similar damage on blue plums where they rubbed on a limb, and seen apples grow deformed where they were damaged when young and it led to a scar.

    Bookmark   October 17, 2013 at 1:34AM
Sign Up to comment
More Discussions
best tasting pomegranate
I recall an article in CRFG about a year ago about...
Zone 5 fruit and nut trees Northeast, Nebraska
Hello, I have an acreage near Allen, NE and I would...
Broken citrus tree
Hello all. Last May, I planted satsuma and kumquat...
Is San Diego just behind with the flowering??
Any San Diegans or southern Californians here? I see...
Asian pear spray in first year
Just planted a dwarf asian pear from Starks. Do I need...
ferroplasm Zone 7b
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™