Finally, Reeves shows a tree trunk on which hundreds of holes have appeared. It’s the handiwork of the yellow-bellied sapsucker. Squash vine borers are disgusting veggie killers in your garden. But on “The Georgia Gardener” July 29 and 31, host Walter Reeves shows how to turn the tables. Reeves talks with University of Georgia horticulturist Wayne McLaurin on how to identify and control squash vine borers. Call “The Georgia Gardener” toll-free number!* 1-877-GAGROWS * They also visit a tire tower where they’ve been growing Irish potatoes. They find the potatoes — and a nasty surprise, too. “The Georgia Gardener” is especially for Georgia gardeners, airing Thursdays at 7:30 p.m. and Saturdays at 10 a.m. on GPTV. It’s a production of the UGA College of Agricultural and Environmental Sciences and PFC Holding Company.