Role of Climatic Factors on Population Fluctuation of Aphids (Brevicoryne Brassicae, Myzus persicae and Lipaphis erysimi) on Canola (Brassica napus) in Punjab, Pakistan

Qaisar Abbas, Ijaz Ahmad, Muhammad Asghar Shahid, Muhammad Faheem Akhtar, Mussurat Hussain, Muhammad Akram and Ali Raza

Pakistan Journal of Nutrition 13 ( 12 ): 705 - 709 , 2014