Flower provision reduces intraguild predation between predators and increases aphid biocontrol in tomato

Intraguild predation (IGP)–the of a natural enemy species upon another one sharing prey species–is relatively frequent in both and agroecosystems. This may reduce pest control the establishment predator populations during mass release biological agents or multi-predator systems due to increased mortality predators. IGP is exacerbated isolated space-limited such as greenhouses, reduced food resources movement. Therefore, adding an alternative main prey, floral resources, could between enemies these systems. In present study we investigated role supplemental help intra- interspecific involving Harmonia axyridis Propylea japonica (Coleoptera: Coccinellidae) laboratory conditions, tested its application greenhouse setup. We found significant reduction conditions when were abundant. At scale, abundances ladybird abundant, potentially through combination enhanced fertility IGP. resulted aphid on tomato crops. Our demonstrates that companion plants greenhouses can improve with multi-species agent releases.