The Wellington Dog Park is cleaning up its act. The grounds and volleyball areas will be closed for pest treatment, walkway upgrades and maintenance through Friday. It will reopen on Saturday. Crews will be upgrading walkways in the 3-acre dog park this year. The original paths show signs of crumbling. Another of the department’s priorities is battling ants in the fields and the sandy volleyball courts. Crews will apply Top Choice insecticide. The closure allows several days for the product to fully absorb before animals return to the grounds.