The beetle damages coconut plantations.
The Daily Post newspaper reported the state of emergency was was due to end today.
However, the Ministry of Agriculture's Phillip Meto said the destruction of beetle breeding sites had not been completed and the emergency could be extended.
Two teams operating on a $US467,000 budget have been sent out to the affected area which includes Lelepa Island.
The operation involves destroying breeding sites, spreading community awareness and implementing quarantine zones.