First time posting here on the forums. So here we go

Hoping I might be able to get some advice from the good folks here as to what kind of bugs are killing my Asiatic Lilies. The plant that looks to be infested right now I ended up pulling the whole stock out because when I when to examine it and the stalk was so weak it broke. I thought it might have been root rot but when I looked closer at the stock I saw the small bugs all in the inside of the stock. Does anyone know what these bugs are and how to kill them before they kill the rest of my Asiatic Lilies. I posted a close up of the little critters.