Swarup, G., and Rajan. 1985. Mechanism of insect control by nematodes. Pages 49-59, 254-258 in R. K. Bhantor, S. Verma, and S. I. Farooqi, Non-insect pests and predators. Impact of non-insect pests and predators on food production and environment: symposium proceedings. New Delhi, India.