Question: asking about the control of termite in dolichos bean
Answer: told him to spraying dursban,blaze ,tricel (chlorpyriphos) @ 2 ml per liter of water at an interval of 5 days for 3 times or suggested to go for dusting of malathion 5% dust mixed with sand on the base of the leaves or chemical spraying with decis @1ml/l. 
marigold and chilli extract (botanicals) : chop 500 grams of whole plant and 10 hot chilli pods;soak them overnight in 15 liters of water.dilute the filtrate with water at 1:2 ratios and add @ 1 tsp. per liter of extract.