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Curly leaf on my plum and apple? |
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Written by Jungle Jim
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Sunday, 20 March 2005 |
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Every spring we get people with samples of “curly leaf” on plums and
apples and pears. Curly leaf or Peach leaf curl happens only on peaches
and nectarines. If you have curly leaf on other fruit trees almost
always it is a sign of aphid attack. The plum and apple aphid cause the
foliage to curl around the insect to protect them from predators. The
solution is to control the aphid. Because it is not possible to use
systemic aphid controls on edible crops you have to protect the new
growth. Masters’ Pest Fighter with Pyrethryns is a good control. If you have true curly leaf on a peach or nectarine you can pick off
the damaged foliage on small trees. Larger trees it obviously is not
possible in most cases. In any case you need to fertilize to help the
tree replace the damaged foliage. Remember to get three spraying with
copper next winter starting at leaf fall.
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