Host range of rugose spiraling whitefly, (Aleurodicus rugioperculatus) martin and its incidence and damage on coconut plant in coastal region of Bangladesh

Rugose spiraling whitefly, Aleurodicus rugioperculatus Martin (Hemiptera: Aleyrodidae) is an invasive pest causing severe damage to several plant species. Surveys were conducted in the farmers’ orchards of 11 coastal districts Bangladesh namely Patuakhali, Barguna, Barishal, Khulna, Bagherhat, Pirojpur, Jhalokathi, Bhola, Laxmipur, Noakhali and Cox’s Bazar know host range rugose whitefly its incidence coconut during July 2021 June 2022. Results revealed that a total 22 species from 16 families recorded as hosts A. rugioperculatus. Among plants 4 infested by which all life stages such egg spirals, nymphs adults noticed whereas other 18 only observed. The highest per leaflet was observed September at Bagherhat followed October, November May 2022 while lowest June, January, February December 2021. percent (97%) tree district (68%) Bazar. (96.23%) fronds (67.23%) (84%) area occupied this insect (48%). SAARC J. Agric., 20(2): 183-197 (2022)