A simple tent equipped with a carefully selected mesh can be a helpful tool in augmentative biological control efforts. With infested fruit placed inside the tent, called an “augmentorium,” the mesh keeps pest insects in but allows parasitoids to escape and continue their work as natural enemies of target pests. This augmentorium model was built on a PVC frame (approximately 1.2 by 1.5 meters at the base) and was deployed in in Waimea, Hawaii Island, in the early 2000s for field testing. (Photo by M. Klungness, USDA-ARS [retired])