Integrated pest management as a strategy to manage development of insect resistance to pesticides in cotton production in Zimbabwe. A case study for Gokwe District

agriculteur agricultores control de insectos coton cotton damage diffusion de l'information diffusion of information dosage effects farmers farming systems gossypium insect control insecte nuisible integrated pest management monitoring organisme nuisible papel de la mujer participation pest insects pesticide pesticides pests plagas plaguicidas plant production resistance to chemicals role of women vigilancia zimbabwe