Spotted lanternfly isn't as destructive as previously thought, according to a recent Penn State study.
who authored the study, said lanternflies move around too much to cause enough damage to trees.
Hoover’s research attempted to simulate the worst-case scenario for trees in the wild by allowing lanternflies to feed on the same trees for four consecutive years, whereas lanternflies in nature commonly only feed for one to two years before hopping to another target. Even with this lanternfly doomsday scenario, Pennsylvania hardwoods were able to rebound, said Hoover.
In years one and two of the study, researchers put immense feeding pressure on the tree saplings, which led to a significant reduction in their growth — sometimes by half — with the lanternflies also eating at the energy stores reserved in the tree roots to survive the winter, said Hoover.
“The spotted lanternfly is so different than anything I’ve ever worked on because it’s not like you have a cornfield and there are pests in the cornfield, so you treat the cornfield,” Hoover said. “They’re all over the place and moving all the time.”
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