Coconut Rhinoceros Beetle
Coconut Rhinoceros Beetle
Coconut rhinoceros beetle adults chew big holes through palm leaves to feed on soft tissue in the heart of the palm. When they do not have natural predators around to check their numbers, they can greatly affect palm trees, such as coconut and date palms, and even banana trees!
These are dates, the fruit of the date palm. The coconut rhinoceros beetle feeds on the soft tissue in the heart of the palm.
Date palms, like those seen here, are also eaten by the coconut rhinoceros beetle. The clusters of dates in this photo have been placed inside mesh bags to protect them.
These healthy coconut palms are beautiful landscape trees, and can grow in sandy areas where many species can’t.
The large green fruits near the center of this tree are coconuts, which are the fruits of the coconut palm! Coconut palms are one of the favorite foods of the coconut rhinoceros beetle.
The fruit and flowers of a banana tree!
Banana trees are sometimes attacked by the coconut rhinoceros beetle. In this photo, the clusters of ripening bananas are inside protective mesh bags.
Fruit of an oil palm, which is used to make palm oil for cooking. The coconut rhino beetle can kill these palm trees, which are very important plants in many areas of the world.
These oil palms are one of the favorite foods of the coconut rhinoceros beetle.
When coconut rhinoceros beetle adults feed on a palm tree, they often create zig-zag or diamond-shaped cuts in the palm leaves. This is a good sign the beetles are around.
The large holes seen here are caused by hungry coconut rhinoceros beetles. They burrow into the top of palm trees to feed on the soft tissue in the heart of the palm.
Diamond-shaped patterns in palm leaves mean that coconut rhinoceros beetles are around!
Damaged palm: Forest and Kim Starr, Starr Environmental, Bugwood.org.; Coconut rhinoceros beetle: Len Worthington, Flickr.com.; Coconut rhinoceros beetle, top, side, bottom views: Pest and Diseases Image Library, Bugwood.org.; Life cycle: Dr. Aubrey Moore, University of Guam Cooperative Extension Service.; Pupa , grub, instar, adult life stages: Hawai’i Department of Agriculture.; Date palms: Patti Anderson, Identifying Commonly Cultivated Palms, USDA APHIS PPQ, Bugwood.org.; Coconut palms: Forest and Kim Starr, Starr Environmental, Bugwood.org.; Coconut fruit: Charles T. Bryson, USDA Agricultural Research Service, Bugwood.org.; Banana tree: Gerald Holmes, California Polytechnic State University at San Luis Obispo, Bugwood.org.; Banana bunch: Charles T. Bryson, USDA Agricultural Research Service, Bugwood.org.; Oil palms: Center for International Forestry Research.; Oil palm kernels: Manfred Mielke, USDA Forest Service, Bugwood.org.; V-cut leaves, bore holes: Hawai’i Department of Agriculture.