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Hyacinth Plant

Q.Meyer lemon tree in a pot.

Zone 19971 | Karad added on June 8, 2018 | Answered

The leafs are curling and turning yellowish in the center. Also having little dents in the leaf.

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Answered on June 9, 2018

Thank you for sending us your gardening question.

I believe there are multiple factors at play. The bumps on the leaves are characteristic of an early "citrus-scab" fungal infection, but look on the other side of the leaf for possible insect pest. The leaf curl may be related to the scab, or may be aphids feeding and distorting the leaf surface. The discoloration indicates a possible nutrient deficiency, which can cause the plant to be susceptible to pests and diseases.

If you spray with a botanical like 70% Neem Oil (clarified hydrophobic extract of neem) every two weeks, it will prevent the establishment of insect and mite pests and also suppress fungal infections. (Some other neem products are only insectiicidal not fungicidal) You could add a chelated micronutrient solution to the tank mix. Manage soil fertility with with a citrus-specific fertilizer. Slow release, naturally derived materials are best. Over fertilization with high nitrogen and high salts chemical fertilizer and un-composted manures can have detrimental effects, increasing susceptibility to pests.

This article will give you some more information on growing a lemon tree in a container:


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