Can anybody help me here - the newly transplanted mango plants develop these symptoms on leaves
This is not a disease symptom. this type of tissue are dead due to high temperature or physiological disorder; particularly mineral nutrients.
the symptoms seems to be nutritional disorder,better to get the leaf samples tested
I agree with previous speakers, but it can also be short-term effects of water shortage.
Could be a 'Tipburn' of mango leaf [ http://plantdiseasehandbook.tamu.edu/food-crops/fruit-crops/mango/ ]
"Tipburn (physiological): The leaves are necrotic around the edges (See Photo). A moisture deficiency or salt accumulation can cause the damage. Extreme fluctuations in soil moisture should be avoided. Plants may need a heavy watering to flush salts out of the root zone. This may require an improvement in soil drainage."
The plant needs to make sustainable amount of water, tiny sniffing in the provision and abundance of large amounts of salt or pH of the water itself causes similar symptoms on the leaves of coffee.
i am agree with irshad husain.
soil samples should be checked for macro & micronutrients
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