Muhammad Arshad Hussain and Tariq Mukhtar, 2019. Root-Knot Nematodes Infecting Okra in Major Vegetable Growing Districts of Punjab, Pakistan. Pakistan J. Zool., 51: 1137-1143. DOI: http://dx.doi.org/10.17582/journal.pjz/2019.51.3.1137.1143