questions: asking about fruit drop disease of coconut plant 
 answers: recommended him to apply coconut special 100gm/plant and borax 40gm/plant apply in a ring which should be 1 to 1.5 m away from the plant. also apply urea/ssp/mop @ 750g, 1250 g and 900 g/plant.
bordeaux mixture 100g copper sulphate/5 lit water and 100 g agricultural lime per 5 lit water, then mix this solution and then spray.