Newbie peach spray question

princesspea(sunset14)February 2, 2013

Hi all,
I am growing peaches the first time and I am confused about the spraying for leaf curl thing. The trees I have are "resistant" according to the Dave Wilson tags on them. They look like they will break bud within days and I want to know, do I need to spray?
I understand they need it three times, the nursery they came from is very well known for its great fruit tree culture so I am sure they sprayed earlier if needed. But being Saturday, nobody there is picking up the phone! (It's a small family business).
Gardenwebbers, can you help a girl out? Thanks!

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If they are about to break bud it may be too late, but if you want to try, you need to do it immediately.

Carla in Sac

    Bookmark   February 2, 2013 at 3:59PM
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I would spray with copper, asap. Mrs. G

    Bookmark   February 2, 2013 at 5:05PM
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thanks guys, this helps lots. I managed to talk to the guy at the nursery and he says they have been sprayed 3x but need one more at valentines day.

    Bookmark   February 3, 2013 at 12:51PM
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Princess Pea:

Peach leaf curl is caused by a fungus (Taphrina deformans).
The fungus overwinters on buds, bark ect. When the bud scales swell and crack in spring, the fungus attacks the meristem. The leaves will open up twisted/puckered and have pink or yellow lumps on them. Once you see this, you will never forget this disease.

To prevent, you must spray with a fungicide BEFORE the leaf
buds crack open. It is too late to spray afterwards and get control. I spray with chlorothalonil in late March and
again a second spray the first week in April for SE WI. Your area is different than mine so all I can say is that you need to spray while the tree is dormant and be sure to
cover the entire tree (trunk, branches ect).

I cannot comment on "resistant" peach varieties as I have no experience with them.

    Bookmark   February 4, 2013 at 1:37PM
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