Authors :

R.Raja Rishi*, N.D.Barthakur, R.K.Borah, Rajesh Kumar and Shailesh Pandey

Author Address :

Forest Protection Division, Rain Forest Research Institute, Jorhat – 785 001 (Assam) India. *Email. rajarishir@icfre.org

Abstract :

Pest surveys were carried out in Golaghat, Jorhat, Kamrup, Nagaon, Sivasagar and Sonitpur  districts of Assam State, India for the pest species infesting different commercially important bamboo species such as Bambusa balcooa, Bambusa nutans, Bambusa pallida and Bambusa tulda during the period from 2010-13 and recorded 31  insect pests and one mite belonging to various  orders. Based on the intensity of pest attack, the sap feeders Antonina sp., Ceratovacuna silvestrii and  Palmicultor lumpurensis, the defoliators Psara licarsisalis,  Crocidophora sp., Pyrausta coclesalis, Hexacentrus unicolor and  Discophora sondaica  were categorized as major pests. Six new hosts were recorded as  Discophora sondaica, Nemetis chandica and Myzus obtusirostris on  Bambusa  pallida, Baoris farri  the defoliator on  Bambusa tulda and the aphid Ceratovacuna silvestrii on Bambusa nutans during the study. The defoliating pests Crocidophora sp., Discophora sondaica, Hexacentrus unicolor, Parasa sp., Psara licarsisalis, Pyrausta coclesalis were found high during the month from May to August and the sap sucking pests were found high during the month of January to March.

Keywords :

Infestation, sap feeders, defoliator, Myzus obtusirostris, Ceratovacuna silvestrii.