Population dynamics, distribution and control of drosicha mealybug, Drosicha sp. (Homoptera: Coccidae) on willow tree (Salix wilhelmsiana) in district Skardu Gilgit-baltsitan, Pakistan Journal title: Journal of Biodiversity and Environmental Sciences (JBES) Authors: Syed Arif Hussain Rizvi, Sajjad Ahmed, Kamran Sohail,Muhammad Akbar,Farida Begum, Ghulam Raza, Muham... Subject(s): Biological Sciences, Environmental Sciences, Biology