Portland officials say they’re getting ready to deal with an infestation of a destructive forest pest in one of the city’s most prominent – and visited – public spaces.

Officials say the parks department has been monitoring oak trees in Deering Oaks and has identified a “limited infestation” of browntail moths.

The moths are capable of killing trees, and their caterpillars have poisonous hairs that can cause a rash in humans.

The city said Tuesday that forestry crews have been clipping branches over the last several months to reduce the threat of the moths.

It says a number of trees will also be injected with a spray application.

That work can’t start until leaves start to grow on the trees, and that is anticipated next week.

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