A Gainesville effort to plant 180 trees at three Army Corps of Engineers parks has been postponed because of a lack of interest by contractors. “We only had one contractor attend a mandatory preproposal conference, so we were in a position where we were going to have to readvertise the project,” said Matt Tarver, project manager with Gainesville’s Public Utilities Department. The corps and Tarver “ultimately decided that readvertising in January would cause the tree planting to be performed outside of ideal planting seasons.”