If you see CRB beetles or suspect CRB damage, you can report any of the following ways:.For island updates, visit the CRB RESPONSE WEBSITE OISC’s management goal for coconut rhinoceros beetle is to support the island-wide detection and eradication efforts led by the USDA and HDOA.Bi-weekly updates about the coconut rhinoceros beetle eradication process are available from the Hawai’i Invasive Species Council.Hanging panel traps have been set across the island of O’ahu to monitor for CRB.First detected on O’ahu in December 2013, the breeding site is limited to a four mile radius around Joint Base Pearl Harbor Hickam (JBPHH) and eradication efforts were started immediately upon detection of CRB.CRB also pose threats to all oil palms, pandanus trees, and banana trees.
Threatens the endemic and endangered fan palms, Loulu.Adults can spread through flight, hitchhiking and in high wind events.Grubs can be spread through green waste transfer.The damage to palms and their fronds can outright kill the tree or leave it susceptible to disease.CRB damaged palm fronds have distinct geometric notching, appearing to have been cut by scissors.Adult CRB bore into the crowns of coconut palms to eat developing leaves.Video of Coconut Rhinoceros Beetle crawling on side in a “C-shape”.Video of Oriental Flower Beetle crawling on back.Larval stages look very similar, but oriental flower beetle grubs wiggle on their back, while CRB grubs wiggle on their side.Oriental flower beetles have mottled white patches, while CRB are solid black.Oriental flower beetles are about one inch long (about half the size of CRB).Oriental flower beetle do not have an upturned “horn” like CRB.The oriental flower beetle is the largest beetle on O’ahu and is often mistaken for the Coconut Rhinoceros Beetle, however there are some distinct difference that can help you identify between the two beetles. Oriental flower beetles have been in Hawai’i since 2002 and are widespread. Adult CRB are active at night and live between 4-9 months.After a pupation phase of about 2 weeks, adults emerge.Grubs feed on decaying wood and organic material for about 4-6 months before pupating.Eggs hatch into C-shaped, larval grubs that can grow to be 60-105mm (2.3-4.1 inches) long.Eggs are laid and develop inside rotting coconut logs, mulch or compost piles.Both male and female CRB have a horn on their head, though the male’s horn is more than twice as long as the female’s.Adult coconut rhinoceros beetles are about 30-60mm long (about 2 inches) solid, black beetles.CRB is one of the most damaging pest of coconut palms, and could pose a threat to other species including Hawaii’s only native and endangered palm, the Loulu (genus Pritchardia). In its native range, the coconut rhinoceros beetle can be attacked by a variety of predators at all life stages and is also susceptible to a fungus and a virus that keep the populations in check. It was accidentally introduced from Sri Lanka to Samoa in 1909 and is now distributed throughout the South Pacific. The coconut rhinoceros beetle (CRB) is a large scarab beetle that is native to Southeast Asia. Coconut Rhinoceros Beetle ( Oryctes rhinoceros)
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