Leaf discolouration and curling on a citrus tree. What is it?

Orange    None Given

This is either an orange or a lemon tree. I can't recall which. It was planted about 6 months ago. It had been growing quite nicely and is actually flowering. But recently (in our Southern Hemisphere late autumn) this curling discolouration has occurred. It just occurs in a segment of the leaf and goes down to the central vein. The particular leaf I have photographed is viewed from front and back. You may also be able to see a slightly filmy appearance on the other side of the central vein. What is it? Thank you.

Posted by: Jack (2 points) Jack
Posted: May 8, 2016


This is caused by a citrus leafminer. If you look closely at the end of one of the tunnels before they pupate and emerge from the leaf you will be able to find them. They usually move to the edge of the leaf and curl it over when they pupate.

Posted by: Kayla Thomason (3 points) Kayla Thomason
Posted: May 12, 2016

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