The investigation on "Ecological influence on population dynamics of mango hopper" was carried out at JAU research stations and farmer orchards in Junagadh, Mendarda and Dhari during 2021-23. Hopper populations peaked on inflorescences in the 9th SMW and on trunks around 44th-48th SMW, with canopy peaks varying across varieties. Alphonso recorded the highest infestation, followed by Kesar and Rajapuri, with Junagadh showing maximum hopper populations, Mendarda moderate and Dhari least. Correlation studies revealed hopper incidence was positively linked with sunshine hours, humidity...