In the effort to manage the hemlock woolly adelgid in eastern North America, two fly species deployed as biological control agents are themselves targeted by parasitoid wasps. A new study examines how these parasitoids affect the flies and other predators of the hemlock pests.
As the fall armyworm has expanded its range in Asia and Africa, international collaborations are at work to respond. In Nepal, early warnings and training prepared the country's agricultural community well ahead of time.
In Washington state and British Columbia, Canada, two species of wasps from Asia have been found to be successfully parasitizing the invasive fruit fly spotted-wing drosophila.
Researchers deploying predator insects to attack an invasive forest pest need to monitor how well those predators' populations are growing. A new specially designed container speeds up that work by collecting and separating two different predator species at the same time.