Effect of food plant switching by a herbivore on its parasitoid: Cotesia melanoscela development in Lymantria dispar exposed to reciprocal dietary crosses

acer auxiliaire de lutte biologique biological control organisms cotesia melanoscela emergence emergencia enemigos naturales ennemi naturel growth rate hosts insecte nuisible insecte utile lymantria dispar mortalidad mortalite mortality natural enemies parasitism parasitisme parasitismo parasitoides parasitoids pest insects pests of plants plagas de plantas populus ravageur des plantes taux de croissance useful insects