questions: asking for better development of fruit in lemon 
 answers: suggested to go for foliar spraying of mahaphal @ 2ml/l at an interval of 10-15 day  for better development of fruit.  apply dursban 20 ec @ 2ml / l of water for  3 spray at 5 days interval to control pest infestation viz. aphids,thrips, white flies,termites and fruit borer.