Does grasshopper control create grasshopper problems? - Monitoring side-effects of fenitrothion applications in the western Sahel

chemical control coleoptera control de insectos control de plagas efectos secundarios effet secondaire eggs encuestas enemigos naturales ennemi naturel fenitrothion hatching huevos insect control insecte nuisible insecticidas insecticide insecticides kraussaria angulifera lutte antiravageur lutte chimique monitoring mortalidad mortalite mortality natural enemies nontarget effects oedaleus senegalensis oeuf pest control pest insects sahel saison seasons side effects surveys vigilancia