I live in India [tamilnadu]. Recently we are building our new home with wooden frames for the windows and doors, but the wood being used contains strange markings. When asking the carpenter about it, he reported that they were the rings of the tree. Typically I don't trust him because it had small holes within them. The wood being used is country wood [African] which the carpenter bought for making the frames and doors. I've attached the photos taken around most of the places where I find them as bug active zones.
For my satisfaction, I went to many places to verify whether it's worm active or bug affected. Something like that. I got a 50/50 answer, half I consulted said it was active but half denied it.
Please do suggest, is it good to continue with this wood or else what would be the solution to render it? I'm grateful to have an answer. I mentioned the place in order to verify the region where the wood is being used.
New developments are found on the wood , saw dust are found only at zoomed view.