A network that helps people worldwide obtain rapid advice and information on crop protection, including the identification and management of plant pests.
PestNet is a network that helps people worldwide obtain rapid advice and information on crop protection, including the identification and management of plant pests. It started in 1999. Anyone with an interest in plant protection is welcome to join. PestNet is free and is moderated, ensuring that messages are confined to plant protection.
August 2017. Damage to yam in Fiji by a weevil; is it Paleopus costicollis?
It looks like Elytroteinus geophilus (Lucas, 1861) (Curculionoidea, Curculioninae, Cryptorhynchini). Known also as the Fijian Ginger Weevil, Kuschel (2008) says it is known from Cook Islands, Fiji Islands, New Caledonia, Tonga, Vanuatu, Wallis, and Western Samoa. Kuschel adds that it can be reared on taro, ginger, yam, fruits of Inocarpus edulis and adults can occasionally be found on Hibiscus andCoconuts. It can be a big problem in New Caledonia on yam stocks but rarely in the fields.
The white blotches on the elytra, the wide pronotum, and the truncate abdomen and elytral apices are diagnostic for Elytroteinus geophilus. This species has frequently been recorded as feeding on a number of different crops, including ginger, taro, lemons and sugarcane. Dioscoreaspp. have not been yet been recorded in the literature as a host plant.