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This insect serves as vector for the Bursaphelenchus cocophilus nematode [MP 1] — the cause of red ring disease in coconuts, [4] oilpalm, and dates. [MP 2] [MP 3] R. palmarum carries the disease in the form of dauer larvae, a survival form. [MP 4] By the time one observes symptoms, the 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]
The reduction in leaf area on the damaged fronds results in a reduction of the number of nuts produced, and in newly planted palms the beetle can destroy the growing point of the palm resulting in its death. Mature palms may also die after extremely heavy attacks. [5] [3] [16] [17] Coconut palm in Hawaii, heavily damaged by Oryctes rhinoceros ...
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).
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 ]
Leafhoppers are also susceptible to various insect pathogens, including Dicistroviridae viruses, bacteria and fungi; numerous parasitoids attack the eggs and the adults provide food for small insectivores. Some species such as the Australian Kahaono montana even build silk nests under the leaves of trees they live in, to protect them from ...
The second, third and fourth instars are immobile and feed by sucking sap from the leaf; they secrete wax and develop a marginal fringe of white waxy strands. After pupation, the adult insects have yellowish-orange bodies and translucent wings. They also secrete powdery wax, giving them a mealy appearance and turning the wings white.
Coccotrypes dactyliperda, the date stone beetle, palm seed borer, or button beetle, is an insect belonging to the subfamily bark beetles (Scolytinae). It originates from Africa and is spread around the world due to the trading and transportation route. The date stone beetle is known as the pest for the date palm.