How to Care for a Lime Tree With Curled Leaves

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Curled leaves on a lime tree can indicate several different problems. Curled leaves could be caused by leaf miner, aphid, leaf curl or cold damage. You’ll need to diagnose exactly what is causing the curled leaves on your lime tree. The way you treat and care for your lime tree will depend on the root of the problem. Although some causes of curled leaves are merely eyesores and won’t harm fruit production or the lime tree’s health, other afflictions can kill your lime tree if left untreated.

Things You'll Need

  • Insecticidal soap
  • Garden hose
  • Horticulture oil or insecticide
  • Copper-based fungicide
  • Move your potted lime tree to a warmer or sunnier location if the curled leaves have reddish-brown spots on the backs of them. In this case, the curled lime tree leaves are a symptom of cold damage.

  • Cleanse the leaves of your lime tree with an insecticidal soap and forceful sprays of water from a hose if the curled leaves have small, needle-like holes in them. This is a sign of aphid damage.

  • Spray your lime tree with horticulture oil or an insecticide and remove the damaged leaves if the curled leaves appear to have squiggly lines going through them. This indicates a citrus leaf miner infestation, which is more harmful to young lime trees than established trees.

  • Treat your lime tree with a fungicide that contains at least 50 percent copper, such as a Bordeaux mixture, if the curled leaves have reddish spots on developing leaves or have turned yellowish-gray or brown and velvety. These are symptoms of leaf curl, a fungus that affects the leaves, stems and twigs of citrus trees. Apply the fungicide in November and in early spring, before the buds begin to swell.

Tips & Warnings

  • If your lime tree with curled leaves appears to be suffering from cold damage and is planted in the ground, you may need to transplant it into a pot or a warmer location.
  • To treat a leaf miner infestation, be sure to spray your young lime tree with the insecticide or horticulture oil every time new growth appears on the tree.
  • Always follow the directions exactly when using insecticides and other horticultural chemicals, including the instructions on how to properly discard the unused portion and packaging.

References

  • Photo Credit John Foxx/Stockbyte/Getty Images
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