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These insects are attracted to the release of volatile compounds produced by injured palm trees. [2] The larvae burrow through the hearts of palms, and their feeding can potentially kill an infested palm or serve as an avenue for secondary infections of bacterial disease.
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).
Oryctes rhinoceros, also known as coconut rhinoceros beetle, Asiatic rhinoceros beetle, and coconut palm rhinoceros beetle, [2] is a large species of beetle (typically 4–5 cm long), belonging to the rhinoceros beetles subfamily Dynastinae. [1] Oryctes rhinoceros attacks coconut palms and other palms such as the economically important oil palm.
Palmetto weevil grubs infesting a Bismarck palm. The palmetto weevil (Rhynchophorus cruentatus) is an insect native to Florida, but has been found as far as southern Texas to the west and South Carolina to the north. [1] [2] It is the largest weevil in North America and the only kind of palm weevil in the continental United States. [1]
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 ]
A number of Oryctes species cause damage to palm trees and are regarded as agricultural pests. [19] [6] The four species discussed in the following paragraphs are the most destructive: Adult beetles of Oryctes rhinoceros and Oryctes monoceros attack coconut and oil palms in the Asia/Pacific region, and in Africa respectively. The beetle bore ...
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 ...
The insects may be seen on the leaflets where they form little patches of dead tissue, but most remain undetected under the sheathing leaf stalks. The vigour of the tree is reduced, the leaf blades may wither, and the dates may be unsaleable. In 1920, a particularly bad infestation in Algeria killed nearly 100,000 date palms. [2]