Pesticides-Environmental aspects Pesticides-Toxicology 2 DDT(Dichloro Diphenyl Tricholroethane) 1 Dissertations, Academic (Ph.D) 1 Dissertations, Academic(Ph.D) 1 Environmental study 1 Insect pests-Biological control 1 Mosambique tilapia 1 Pesticides and wildlife 1 Pesticides-Effect on human health 1 Pesticides-Health aspects 1 Pesticides-Physiological aspects 1 Pesticides-Pollution 1 Theses (Ph.D)-Environmental Sciences 1 Thesis(Ph.D)-Zoology 1 Women-Effect of pesticides on 1