Question: asking about control measure of bud rot  and nutrient dose after 5 years of planting of arecanut
Answer: told him n early stages of infection, scoop out affected rotten tissues by making longitudinal side splits. apply bordeaux paste and drench the crown with bordeaux mixture (1 %).1% solution preparation- mix 100g coper sulphate in 5 lit of water and 100g lime in 5lit of water.after that both mixture mix well and spray in crowing portion of the plant with sprayer