I have a young mango tree. When the new leaves came up in spring, they were yellow with brown tips. The more mature leaves are still green. Can you please help identify the problem and provide a solution?
10 September 2021 04:22 PM
Calcium deficiency can cause new leaves to pale or yellow; and cause the tips of the leaves to dieback.
Deficiencies can be occur from:
- a lack of nutrients: this can be fixed by applying a specialised fertiliser such as Yates Hydrangea Pinking Liquid Lime & Dolomite - contains Calcium (Ca) as calcium carbonate 41.5% w/v.
- excessive nutrients causing competition between nutrients: this can be avoided by using complete fertilisers suitable for the plants needs, such as Yates Thrive Natural Citrus & Fruit Organic Based Pelletised Plant Food
- incorrect soil pH: check the soil pH. Mangoes prefer a mostly neutral soil pH between 6.5 and 7.5. If the soil pH is too low apply Yates Hydrangea Pinking Liquid Lime & Dolomite; if the soil pH is too high Yates Soil Acidifier Liquid Sulfur