Irshad, Mohammed. 2008. Biological control of insects and weeds in Pakistan. 338 pp.
"Biological Control of Insects and Weeds in Pakistan argues that Biological control has permanently solved many pest problems throughout the world. Parasitoids, predators and pathogens have been used for the purpose of suppression of insect pests. Natural enemies of pest species often face insurmountable obstacles in accomplishing this purpose in areas where powerful, broad-spectrum chemicals are used without considering their effects on these beneficial species. This book is planned to supplement, existing texts books on entomological problems. It is designed to satisfy the need that fulfills the demands of conventional biological control practitioners. It provides achievements in the major crops. It also explains philosophy, theory, basic biology, ecology and Integrated Pest Management usually centered on preservation of natural environment." (from http://tinyurl.com/5mjxaz, accessed 23 July 2008)