Senthil Kumar, N., & Barthakur, N.D. 2005 A record of Egyptian fluted scale, Icerya aegyptiaca (Douglas) on teak in Assam.. Insect Environment 11(1): 31-32.
Notes: Teak (Tectona grandis) is an important timber tree and nearly 280 insects have been found associated with teak all over the country. The scale insect Icerya aegyptiaca (Margarodidae; Homoptera) was found on teak during 2003 in Jorhat, Assam, India. A survey was conducted on 50 teak clones collected from various states for any insect pest or disease incidence from April 2003 to December 2004. A sudden incidence of the teak scale insect, I. aegyptiaca, was noticed on several teak clones during July and August 2003. A total of 6 clones were found heavily infested, followed by 8 clones which were moderately infested. Out of 50 clones, 27 clones were found less infested with scale insect as per Rohrmoser severity scale. A total of 9 clones were not infested with the teak scale insect. After 6 months, data were collected on growth parameters, such as length and girth (10 cm above the ground level), to test the performance of different clones. It was found that growth was reduced due to the scale insect infestation.