A report on incidence of leaf gall psyllid, Pauropsylla tuberculata on Scholar tree, Alstonia scholaris in Rajasthan, India

Abstract

This research paper reports the gall infestation on an ornamentsal tree Alstonia scholaris, commonly called Scholar tree, caused by Pauropsylla tuberculata (Order: Hemiptera). The infested leaves bearing galls were collected from Alstonia trees and observed under dissecting microscope. Under this study we assessed the morphology of gall infested leaves, insect and damage symptoms. Theses pouch gall enclosed different development stages of insect P. tuberculata. The nymphal stage of the gall insect is completed within the galls and later imago exits from the galls through a small opening in the gall. Galls initially are greenish but later on get brownish on maturity.