It is recommended to increase functional biodiversity within the orchard (e.g. by practicing an alternating mowing regime with a permanent supply of flowering plants as food sources for beneficials notably in early spring).
Plants species that form the vegetation cover should be native or be selected/planted due to its favourable characteristics.
IP guidelines should provide a list with appropriate species. This list should consider and possibly avoid known host plants of destructive new pests (e.g. Halyomorpha halys, Drosophila suzukii, sharka) should be limited.