Question: query regarding premature droping of coconut fruits and drying of leaves. 
Answer: treatment: 

please clean the crown reason and also remove the disease affected leaves from the plant. root feeding with hexaconazole 10 ml per liter of water or copper oxychloride 2gram per liter of water and also spray any one on the above mention fungicide in the crown region 2 times at 15 days interval.

  use recommended doses of fertilizer- urea 1200 gram, phosphorus 2 kg and potash 2 kg per plant in two equal doses, one in the month of march-april and another in the month of september-october in ring method 2 miter away from the plant and also apply borax 25-50 gram per plan per year along with the recomended doses of fertilizer.