Question: query regarding management of leaf blight in arecanut.
Answer: ramove the heavily affected leaves from the plants and then apply  hexaconazole 10 ml/liter of water or copper oxychloride (blitox-50) 3 gram/liter of water 3 times at 15 days interval in the root portion of the plants by loosening of soil with help of hand hoe. after this apply the recommended doses of fertilizer- urea 200 gram, super 250 gram, potash-280 gram, borax 50 gram and dry cowdung 20 kg per plant in 2 equal split dose once in the month of march/april and other in the month september/october.