Question: My neighbor has a dead Bismark. After removing some of the fronds, we found quite a few small capsule-like things made from the frond fibers. The tree died from the fibers being torn up to make a large number of these cocoons. In there are beetles in various stages of a beetle. The fully grown beetle is 1.5 ” long and is a redish brown and black. Do you know what these are and how to kill them? We found another tree across the park that is the same way. I’m afraid we may lose all our Bismarks. Thank you for your help.
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