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Pear Scab V Frost kill.

Posted by beeman_gardener 5 (My Page) on
Sat, May 24, 14 at 21:34

I have lost a Flemish Beauty pear tree this winter, amongst other things.
It had Pear scab last year, quite bad, so I used Dormant spray and Lime Sulphur in the fall, planning a second spray this spring. Come the spring the tree is defunct, no buds or growth.
After the terrible winter I'm wondering if it was the scab or cold that killed it?
I plan to remove it and replace it with a 'Claps Favorite'. Is the soil in the hole suspect? Does scab infection come through the soil?

Follow-Up Postings:

RE: Pear Scab V Frost kill.

  • Posted by fruitnut z7b-8a,4500ft SW TX (My Page) on
    Sat, May 24, 14 at 22:31

Probably a combination of a weakened tree and a hard winter. If it lost leaves last summer then it has less ability to prepare for cold.

RE: Pear Scab V Frost kill.

So where does scab come from? It it air or soil contamination?
I want to replace, but don't want to infect the new one!

RE: Pear Scab V Frost kill.

  • Posted by fruitnut z7b-8a,4500ft SW TX (My Page) on
    Sun, May 25, 14 at 9:44

A leaf infection will be from the air. There are things that could damage the tree that might be in the soil but not scab. Commercial growers worry about replant disease, meaning things in the soil like nematodes that slow the growth of new trees. Home growers usually can't tell the difference.

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