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Hyacinth Plant

Q.Lemon tree

Zone Johannesburg South Africa | Jenny wertheimer added on December 21, 2017 | Answered

My lemon tree and my ornamental orange tree both have bumpy leaves – like little lumps growing from inside.
What is the cause of this as I have sprayed with oleum about 4 weeks ago but it does not seem to have helped yet.

Thank you

Kind regards

A.Answers to this queston: Add Answer
Certified GKH Gardening Expert
Answered on December 22, 2017

This sounds like what is called Citrus Canker. A very bad bacterial infection. This article will help you to identify the problem, and offer ways to solve the issue: https://www.gardeningknowhow.com/edible/fruits/lemons/common-lemon-tree-diseases.htm

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