Sporadically throughout the spring and summer, Multnomah County employees bring a white canvas into Portland-area parkland — not to channel their inner Bob Ross, but to catch a tick or two.
Or in some cases, 25, like they did last month at Powell Butte Nature Park.
“We’re seeing a lot more information and just anecdotal evidence that there are increasing tick populations in our area,” said Levi Zahn, the county’s vector control and code enforcement program supervisor…