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The palm weevil Rhynchophorus ferrugineus is one of two species of snout beetle known as the red palm weevil, Asian palm weevil or sago palm weevil.The adult beetles are relatively large, ranging between 2 and 4 centimetres (1 and 1 + 1 ⁄ 2 inches) long, and are usually a rusty red colour—but many colour variants exist and have often been classified as different species (e.g., R. vulneratus).
The palm weevil Rhynchophorus vulneratus is one of two species of snout beetle known as the red palm weevil, Asian palm weevil, or Sago palm weevil.The adult beetles are relatively large, ranging between 2 and 4 centimetres (1 and 1 + 1 ⁄ 2 inches) long, and vary from a rusty red colour to almost entirely black; many colour variants exist and have led to considerable confusion with other ...
Rhynchophorus, or common name palm weevils, is a genus of beetles in the weevil family, Curculionidae. Palm weevils are major pests of various trees in the family Arecaceae throughout the tropics including: coconut ( Cocos nucifera ), Areca catechu , species of the genus Phoenix , and Metroxylon sagu . [ 3 ]
The South American palm weevil, Rhynchophorus palmarum, is a species of snout beetle. The adults are relatively large black beetles of approximately one and a half inch in length, and the larvae may grow to two inches in length.
The life cycle of the African Palm Weevil is similar to that of other Rhynchophorus species. The adults lay eggs in wounds in the stems of dying or damaged parts of palms. After hatching, the weevil larvae excavate tunnels in the trunk and feed on the shoot and young leaves, frequently leading to the death the host plants.
A sago palm being harvested for sago production Sago logs ready for processing in Kampung Medong, Sarawak, Malaysia. The sago palm, Metroxylon sagu, is found in tropical lowland forest and freshwater swamps across Southeast Asia and New Guinea and is the primary source of sago. It tolerates a wide variety of soils and may reach 30 meters in ...
These large beetles are considered a major pest in palm plantations, mainly in Cocos nucifera, Metroxylon sagu and Metroxylon solomonense. In fact the adults lay eggs in wounds in the stems of palms. After hatching, the weevil larvae excavate tunnels in the trunk and feed on the tissues, frequently leading to the death the host plants.
Sphenophorus cicatristriatus, Rocky Mountain Billbug Cactophagus spinolae, Cactus weevil from Teotihuacan. The tribe Rhynchophorini is the largest member of the true weevil subfamily Dryophthorinae. Alonso-Zarazaga and Lyal (1999) treated it as a distinct subfamily, Rhynchophorinae (in the family Dryophthoridae). [1]