Mass releases of two parasitoid species, Aphidius matricariae and Ephedrus cerasicola, may provide an alternative measure to pesticides control the rosy apple aphid Dysaphis plantaginea in organic orchards. As exploratory study, we tested if presence flower strips between tree rows could improve action three early releases––and other naturally present enemies––on colonies number aphids per tree...

The nectar provision hypothesis predicts that the introduction of nectar-producing plants in agroecosystems benefits parasitoid populations field and enhances biological control. Intercropping is a common crop diversification scheme may bring complementary sources for parasitoids increase herbivore pest For instance, intercropping cereals with faba beans introduces usually sugar-devoid systems ...