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Short-term, heaving feeding by adult spotted lanternflies on young maple trees inhibits photosynthesis, potentially impairing the tree’s growth by up to 50 percent, according to a new study by Penn State scientists.

According to the researchers, the findings can help production nurseries and forest managers make management decisions to protect their inventories.

“Spotted lanternfly will feed on important ornamental and forest trees such as silver and red maple, which are used to make products and are abundant across urban, suburban and rural landscapes throughout Pennsylvania,” said...