Is tillage beneficial or detrimental for insect and slug management? A meta-analysis

•Invertebrate abundance equal in reduced-disturbance and high-disturbance tillage.•Foliar pests are more abundant in high-disturbance tillage systems.•Soil predators are more abundant in reduced- than high-disturbance tillage.•Predator diversity is greater in reduced-disturbance tillage treatments.•Predator and pest species composition shift due to changes in tillage practices.