Why are the leaves on my lime tree light green and patchy?

I have added citrus fertilisers every 2 weeks. And tried spraying eco oil. Could this be a nutrient deficiency?


16 March 2013 01:59 AM

Hi Shan,

Thank you for sending the photo of your lime tree. The leaves look as though they may have a manganese deficiency. It is tricky to know sometimes if it is a manganese or magnesium deficiency. The manganese deficiency first appears in the young leaves but with a magnesium deficiency, the older leaves are first affected. You might like to check the pH of your soil to make sure it is not too alkaline. The pH of your soil should be around 6 - 6.5. If the pH is over 7.5, sufficient manganese may not be available in the soil to meet the plant's demand. If you need to lower the pH, we would suggest using Yates Soil Acidifier Liquid Sulfur. It helps creates ideal growing conditions for acid loving plants such as camellias, azaleas, magnolias and blueberries. It's an easy-to-use liquid formulation, it can be diluted and applied without the dust and the mess associated with traditional granular products. You don't mention which fertiliser you have used on your lime tree. Liquid fertilisers can be applied every 2 weeks or if you prefer, you may like to apply a slow release fertiliser e.g.Yates Thrive Natural Citrus & Fruit Pelletised Plant Food. It's enriched with Dynamic Lifter and has added nitrogen, phosphorus and potassium to give your fruiting plants the right balance of nutrients for their growing needs. Once you have checked to see that the pH is correct and your lime receives the necessary nutrients, I am sure it will begin to put on growth with lush green fertiliser.

Topics: Fruit and Citrus Issues: Garden Jobs