LYNDONVILLE — Main Street was once lined with stunning elm trees. Then Dutch elm disease wiped them out. Since then, Lyndonville has taken steps to protect and preserve its tree stock, most recently with a 2015 tree inventory and management plan. Those efforts were renewed on Friday with a ceremonial tree planting outside of the Village Office to mark Vermont Arbor Day. The event — to celebrate the placement of a single white oak seedling at The River Trail entrance — kicked off a grant-funded initiative to make Lyndonville greener and leafier. Resilient Urban Forests For All has awarded the village $20,000 in financial and technical assistance to conduct a tree inventory, hold educational workshops and trainings, and give away 100 free trees for local residents to put on their properties.