questions: asking about control measure of yellowing of leaves  and foot rot of arecanut 
 answers: told him to  apply organic manure @ 12 kg per tree per year or lime  1 kg per tree per year and for foot rot soil application of neem cake @ 2 kg / palm /year followed bt root feeding with 15 ml per l of water  tridemorph at 3 months interval or bordeaux mixture 1%