What can kill a Bismarck Palm Tree?
One of our established Bismarck Palm's top growth looks like it's dying- it's limp with droopy leaves & so are the nutbearing inflorescence.
Bismarck palm leaves may show nutrient deficiencies or the effect of weevil infestation. I have provided a link that discusses potential nutritional problems, pests, and diseases of this palm. Getting a soil test may help you nail down the problem. Your state Extension Service offers low cost, comprehensive testing. http://edis.ifas.ufl.edu/pdffiles/ST/ST10100.pdf