I have been having a battle with leaf curl since buying a new peach tree about four years ago. When I asked for advice from the nursery I bought it from they said dont worry just remove curled leaves and it will come right in summer. as nearly all leaves needed removing it was quite a task the tree didn,t come right 2 thirds of the tree died back and every year it just gets smaller and any fruit that sets falls off when immature. I have just come across this advice which I am trying this year.
Don't remove the leaves, it is a waste of time, and it doesn't help the tree at all if you do it. Use your time to do other things instead like the ones that follow:
1. In early summer when it is getting hot, and no more rains, apply loads of fertilizers, especially high in Nitrogen. And supplement with Epsom salts. Supply adequate irrigation. The idea here is to help your tree recover vigorously to replace the infected leaves which will fall off. The biggest mistake of homegrowers is not to fertilize their trees when they have PLC infections. The new vigorous leaves will not be infected in the drier months, and it will help your tree prepare much better for next year.
2. Let the infected leaves fall, but promptly remove all the fallen leaves at most weekly, and burn them
3. In autumn, always remove the fallen leaves before they decay.
4. Apply your first batch of PLC fungicide in autumn. Spray also the soil and nearby trees, fences etc.
5.Mid winter around solstice, be sure to remove any leaves still hanging on the trees remove also any mummified fruit. Then spray with the strongest fungicide that you have, like lime sulfur.
6.early spring, when the buds are starting to swell, apply the last batch of PLC fungicide.
7. If you happen to have brown rot and twig blight, it might be good to spray diluted concentrations of copper on your blooms when it is rainy during the bloom time.

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Replies to This Discussion

I give my peach tree two low concentration sprays of copper, one at leaf fall, and one just as buds beginning to form in spring, and that keeps it under control.
It is very wet here, in spring and even now I have watercress growing in funny places, (on paths, compost heap etc) well away from the drain it should be in so peach leaf curl heaven.

Christy Ralphs said:
I give my peach tree two low concentration sprays of copper, one at leaf fall, and one just as buds beginning to form in spring, and that keeps it under control.
well the epsom salts and extra large dose of nitrogen fertiliser have done the trick so far, (with usual natural sprays), i have had to prune for new growth not just for dead wood and the tree grew instead of shrinking as it has for the past four years.

On my replacement trees I was told to spray copper as they are budding and then when you start to see green spray again. I don't like the thought of using that on my trees but have done it.

Do other trees like apples etc need to be sprayed with copper??

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