Weevil larvae can excavate holes in the trunk of a palm trees up to a metre long, thereby weakening and eventually killing the host plant.
As a result, the weevil is considered a major pest in palm plantations, including the coconut palm, date palm and oil palm.
While the adult causes some damage through feeding, it is the burrowing of the larva into the heart of the palm that can cause the greatest mortality of trees.
The larvae can occasionally grow to a length of six to seven centimeters.After fertilization, the adult female can lay between 300 and 500 eggs.In particular, the most recent genus-level revision in 1966 came to the opposite conclusion.A consensus view has not yet emerged, but if the latter interpretation holds, then the species that appeared in the US was vulneratus rather than ferrugineus, which is the invading species in all of the other global introductions.The red palm weevil, Rhynchophorus ferrugineus, is a species of snout beetle also known as the Asian palm weevil or sago palm weevil.
The adult beetles are relatively large, ranging between two and five centimeters long, and are usually a rusty red colour—but many colour variants exist and have often been classified as different species (e.g., Rhynchophorus vulneratus, which is still in dispute).