Question: query regarding control of flowr drop in citrus plant.  
Answer: --spray zoom plus dsl 2 gm/ml per liter of water at 10 days interval in the evening time up to the end of the flowering season. apply the recommended doses of fertilizer- urea 1300 gram, super 2500 gram, potash-900gram and dry cowdung 15 kg per plant in 2 equal split dose once in the month of march/april and other in the month september/october .