Biological control has made a major contribution to integrated pest management ipm in africa but its documentation has been scattered and often under reported this book provides a review of the most important studies including not only successes but also on going challenges the focus is on arthropod pests and weeds but diseases are also covered where significant in 24 chapters case studies and promising research results are presented that cover biocontrol by naturally occurring . Biological control in ipm systems in africa description this book contains 24 chapters containing case studies and research papers on the biological control of pests by naturally occurring agents exotic agents or by seasonal manipulation in africa. Biological control of homopteran pests of conifers in africa this chapter describes the biological control of 3 pests of conifers in africa the cypress aphid cinara cupressivora the woody adelgid pineus boerneri and the black pine aphid c cronartii the distribution and the biological control agents such as parasitoids and predators used for controlling these pests are mentioned. Biological control in ipm for coffee this chapter presents the role of biological control in integrated pest management systems for coffee farms in africa the coffee pests and weeds and the agents used to control them entomopathogens parasitoids and predators are discussed. The role of biological control in integrated management of striga species in africa this chapter discusses the role of biological control and biological control agents including plant pathogenic fungi and bacteria in controlling striga sp in africa the life cycle of the parasitic plant the use of chemical control the use of resistant crops and the integrated control of the parasite are discussed