Question: asking about arecanut
Answer: suggested to 
1.improve drainage system as the area is low lying area
2.recommended fertiliser application : apply borax @ 25g/plant and urea 750g/plant , ssp 1250 g/plant , mop 900g/plant and arecanut special 100g/plant apply at a ring method at an radius of 30 cm from the plant.
stem bleeding control:
scrape the infected portion completely and apply bordeaux paste or coal tar. chiselling out of the infected portions followed by wound dressing with bavistin 50wp @ 1 g /l and finally application of hot coal tar.