Question: query regarding control of trunk borer in citrus.
Answer: -- spray acephate 75sp or carbaryl 2ml/2gram per liter of water 3 times at 5 days interval in the evening time and then block the holes with cotton plug deep in kerosene. after that smearing of carbaryl with lime and water ( 3 gram carbaryl/liter of water) should be applied upto one meter from the base of the tree, which prevant the adult from laying eggs.