Influence of headbugs (Eurystylus sp.) on sorghum grain mould in the Nigerian savanna

cochliobolus lunatus crop yield enfermedades fungosas fungal diseases germination gibberella fujikuroi insecte nuisible losses maladie fongique miridae pathogens perte pest insects pests of plants phoma sorghina plagas de plantas ravageur des plantes rendement rendement des cultures rendimiento rendimiento de cultivos seed semence semillas sorghum yields