In the ongoing fight against spotted lanternflies, researchers are thinking outside the box by enlisting the help of native birds to tackle these pesky invaders.
Traditionally, we’ve relied on manual methods like squashing or stepping on spotted lanternflies to control their numbers. But with the infestation showing no signs of slowing down, scientists are turning to nature’s own pest control experts — birds.
Unlike in their native habitats, spotted lanternflies in Pennsylvania and the Northeast lack natural predators, allowing them to multiply unchecked. However, keen observations by bird enthusiasts and biologists have revealed that some bird species in the region are starting to develop a taste for these pests, although not yet in large enough numbers to make a significant dent in their population.
Anne Johnson, a Ph.D. student at Pennsylvania State University, made an intriguing discovery during her research. She found that spotted lanternflies feeding on a specific tree species, the Tree of Heaven, absorbed toxins that made them taste bitter and unpalatable to birds. Interestingly, birds showed a preference for lanternflies that hadn’t fed on this tree.
Now, with efforts underway to remove the Tree of Heaven, scientists are hopeful that birds will become more effective predators of spotted lanternflies. While completely eradicating the tree might be impractical, experts recommend creating bird-friendly environments in homes, businesses, and outdoor spaces. Installing bird baths, feeders, and houses can attract and support bird populations, encouraging them to target spotted lanternflies.
Allison Cornell, an ornithologist at Pennsylvania State University in Altoona, stresses the importance of localized action. Even though the Tree of Heaven is widespread, targeted measures in neighborhoods or on farms can increase the chances of birds recognizing spotted lanternflies as a tasty snack.
As researchers delve deeper into the potential of avian assistance in controlling spotted lanternfly populations, the collaboration between humans and nature offers a ray of hope in combating this invasive menace.