![]() The primary hosts of the Red Palm Weevil include 24 species of palms in 14 genera, including most of the common landscape palms found in California. Feeding damage leading to the death of infested palms is widely reported in areas invaded by this pest. (5) Empty pupal cases and the bodies of dead adult RPW in and around heavily infested palms, and (6) breaking of the trunk, or toppling of the palm crown. ![]() (4) Appearance of chewed plant material (frass) at the external entrances of feeding tunnels and a highly distinctive "fermented" odor. (3) Oozing of viscous fluids from tunnels. (2) Infested palms may emit "gnawing" sounds caused by larvae feeding inside. Palms damaged by RPW may exhibit the following symptoms: (1) presence of tunnels on the trunk or base of fronds. Red Palm Weevil larvae feed within the apical growing point of the palms creating extensive damage to palm tissues and weakening the structure of the palm trunk. RPW’s are usually attracted to unhealthy palm trees, but they will often attack healthy palms too.
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