Emerald Ash Borer Threatens Nebraska's Ash Trees
The emerald ash borer (EAB), a destructive invasive insect native to Asia, was first detected in Nebraska in 2016. EAB rapidly kills ash trees and has spread across the US since its arrival in 2002.
EAB larvae tunnel beneath the bark, disrupting the tree's ability to transport nutrients. Adult beetles can fly long distances, and infested firewood can unknowingly spread EAB to new areas.
Nebraska has nearly 44 million ash trees, making up 9% of the state's total. In cities, ash trees comprise a staggering 27% of the urban canopy. Left untreated, EAB infestations have an 80% chance of killing ash trees within 8 years.
Homeowners can help slow the spread of EAB by educating others about the importance of treating ash trees in infested areas. Chemical treatments can be a preventative measure, but tree health and cost-benefit should be considered before treatment.
The fight against invasive species is ongoing, but Nebraskans can act to protect their ash trees from this destructive pest.