Pear tree problem

danzeb(7a long island)May 23, 2014

One pear tree look perfect so far the other has leaves as shown in the photo. Anyone know that the problem is?

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fireduck(10a)

That is undoubtedly a bacterial problem that is most likely due to humid/moist weather. Monitor it...but these are usually minor issues.

    Bookmark   May 23, 2014 at 7:47PM
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danzeb(7a long island)

Yes there has been wet weather for a week. The week before the wet weather came the leaves looked perfect.

    Bookmark   May 24, 2014 at 10:26AM
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alan haigh

Here in NY some pear varieties are easy to grow and others are very difficult at some sites. Between scab, fabracea and pear psyla, I usually don't get a precise bead on the issue but can keep pears healthy with a 2% early oil spray and several aps of a good pear fungicide like Flint or Mancozeb and sometimes a follow up insecticide that can handle psyla (not counting a couple insecticide sprays to protect fruit).

What is the variety that is suffering? If the tree defoliates by about mid-summer you will need to either do a lot more spraying or grow tougher varieties. If it is just a few leaves that look like that then forget my advice and let the tree be.

    Bookmark   May 24, 2014 at 2:05PM
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danzeb(7a long island)

The pear trees received an oil spray but no fungicide. The damaged leaves are from a Bartlet pear tree. A Moonglow next to it looks ok. A Keiffer tree I have has a small amount of damage.

    Bookmark   May 24, 2014 at 8:50PM
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franktank232(z5 WI)

Never seen that before. Only issue i've ever had with pears is blister mites...that looks totally different. Sounds good what others have said.

    Bookmark   May 24, 2014 at 9:24PM
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