Knowledgebase
Bark beetle infestation of tulip tree #875923
Asked July 04, 2024, 12:40 PM EDT
Montgomery County Maryland
Expert Response
Borers often attack trees under stress, even if symptoms of that stress aren't yet evident. Common sources of stress that can attract borers include drought, excessive soil moisture (like the very heavy rains we experienced in 2018 and, to a lesser extent, 2019), and damage from storm breakage (or lightning strikes) or excessive pruning. Tulip Poplar are much more tolerant of wet soil than dry (this year and last year's drought might not have started the issue if the borers are well-established, but it isn't helping either), so saturated roots probably aren't a contributing factor in its case. Dead wood (the firewood) usually isn't fed-upon by the same borer species that are drawn to living trees, but we can't rule it out. It may be coincidence that both materials are hosting borers.
Miri