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A Morton Arboretum staffer this week
found that six “Trap Trees” – among 650 set up in 2005 and 2006
to detect the borers through Northern Illinois – contained
larvae, which state officials later determined was Emerald ash
borer (EAB). The infested trees – set up in 2005 –
are on Hazel Crest public works property near the
municipal composting and burning facility. The property is part
of what’s called Open Lands, near the 170th and
California interchange.
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Officials believe the borer arrived in
Illinois on ash firewood
transported from a quarantined area in Michigan. Firewood is the
primary means of transporting pests into new geographic areas.
This pest threatens to destroy one-fifth of all Chicago-area
trees, which are ash. |
