SC monitoring ash trees for invasive emerald ash borer
Preventing and Repairing Thatch (and those purple triangle thingies in trees) - The Handyguys
Care Package Gift Box in Purple Thinking of You Gift - Etsy Israel
What are those purple panels in the trees? | Outside My Window
Parasitoids to the rescue - Emerald Ash Borer, <i>Agrillus plenipennis</i>, and its assassins <i>Oobius agrili</i>, <i>Tetrastichus planipennisi</i>, and <i>Spathius agrili</i> — Bug of the Week