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Why are the leaves on my mandarin tree yellow and spotty?

I thought this could be an iron deficiency at first but my tree has yellow spots rather than the yellowing all over as I have seen on pics online. I tried treating the tree with white oil in case there was a pest issue but nothing changed. Any ideas as to what it could be?

Fruit and Citrus • Pests

Hi Lindsey,

The yellow patches may be caused by scale. Often the scale can be found on the underside of the leaf and can be scratched off with a fingernail. Applying PestOil regularly will help. To improve the general health of the mandarin apply fertiliser in spring and autumn. Try Yates Dynamic Lifter Soil Improver & Plant Fertiliser. It's certified organic and will help create a nutrient rich soil for better root growth, stronger plants and more flowers and fruit! It can be used on gardens all year round, including native plants.

Yt-team

yates

Answered: 19 Dec, 2013

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