Boring insects are beetles that fly into palms and lay eggs. Once these eggs mature, a grub-like worm hatches and it begins to eat the heart of the palm tree, eventually killing it. Symptoms will only become visible when sufficient damage has taken place. By the time the "grub" is done eating, the palm is doomed.
We noticed that palms most susceptible to these insects are Sylvester palms, Pineapple palms, and Bismarck palms, all pictured within this email.
Prevention is the only opportunity we have to keep your palms protected from these invasive insects. A couple treatments a year should keep your palms protected.