Persistence of some nicotinoid insecticides against citrus leaf miner, Phyllocnistis citrella Stainton infesting rough lemon rootstock plants

Department of Horticulture, Punjab Agricultural University, Ludhiana 141 004.

*Corresponding author's present address: Department of Entomology, PAU, Ludhiana 141 004; E-mail: drajsharma@rediffmail.com