Don’t treat trees early for emerald ash borer

September 12, 2018

NORFOLK - With emerald ash borer in the news, homeowners are paying closer attention to their trees for signs of borers.

Extension Educator for Madison, Pierce, and Antelope Counties Wayne Ohnesorg says the insect was found in a baited trap in Lincoln, and in Fremont, an ash tree with signs indicating an infestation was also recently discovered.

Ohnesorg says it’s important you don’t treat your trees early.

“Sometimes when we get these sightings even though there not close enough to warrant it, we have people that want to treat their ash trees to try and save them. The first thing is this is one of the worst times of the year to try and treat your ash tree. The ash tree right now is working on moving nutrients down into the roots getting prepared for the winter” Ohnesorg said.

He says infected trees usually lose leaves at the top of the canopy and the die-off spreads downward.

For more information go to Extension.UNL.EDU.

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