Chromosomal studies on gall aphids Eriosoma ulmi and Tetraneura nigriabdominalis from Kullu, Himachal Pradesh . bpas-zoo [Internet]. 2022 Jun. 15 [cited 2024 Jul. 22];41(1):125-30. Available from: https://acspublisher.com/journals/index.php/bpaszoo/article/view/8433