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Latest Data on CRB Migrations

O’ahu as of February 2, 2026

CRB continue to be widespread on Oahu and we are seeing high populations in many areas especially in Central and West Oahu, as well as Waimanalo. These maps show trap finds on Oahu from July 2025 through December 2025. CRB need two things to thrive, host plants to feed on and breeding material to lay their eggs and larvae to develop in. In areas with lower populations either breeding material or host plants are less available.

For updated maps monthly, click here for website and social media @crbhawaii.

Flyer for Honua Wai Irrigation and Landscapes, listing services like coconut, rhinoceros beetle treatments, fertilizer tree injections, landscape design, lawn maintenance, irrigation repair, and outdoor lighting installation. Features palm trees and Hawaii map outline with the slogan "Our NIU, Our Kuleana" and a message "CRB Can't Win, Arborjet Protects From Within."
An informational poster discussing the threat of coconut rhinoceros beetles, identifying infestation signs, and arboreal treatment methods. The poster lists characteristics of the pest, signs of infestation like V-shaped cuts on palms, and treatment options including tree injections and environmental protections.
Joshua Pokipala of HonuaWai performing CRB tree injections with the ArborJet system for optimal efficiency.
Joshua Pokipala of HonuaWai performing CRB tree injections with the ArborJet system for optimal efficiency.
Joshua Pokipala of HonuaWai performing CRB tree injections with the ArborJet system for optimal efficiency.
Joshua Pokipala of HonuaWai performing CRB tree injections with the ArborJet system for optimal efficiency.
Joshua Pokipala of HonuaWai performing CRB tree injections with the ArborJet system for optimal efficiency.
Joshua Pokipala of HonuaWai performing CRB tree injections with the ArborJet system for optimal efficiency.