The minute holes created by the Wood Borer from where the yellowish powder falls, is the sign of infestation. They can develop their colony inside the wooden structure & able to complete 4 to 5 generations. They infest the internal structure of wooden material and convert it into powder form.Â

Treatment -  The infested wooded structure is made empty & the tiny holes created by infestation & powder was cleaned with duster, The holes are injected with oil base chemical, there after all wooden structure is sprayed thoroughly with oil base chemical. Â