If you're a senior gardener or have a green-thumbed elderly relative, don't miss "Gardening in Georgia" July 19 or 21.

Host Walter Reeves will join his mother, a seasoned gardener. They'll show gardening tools that relieve stiff joints. These tools let older gardeners to play in the dirt longer without pain.

"Gardening in Georgia" airs each Thursday at 7 p.m. and Saturday at 12:30 and 6:30 p.m. on Georgia Public Broadcasting stations.

Reeves is a retired University of Georgia Cooperative Extension agent. In this week's show, he'll check out a shady garden, too, and some azalea leaves under attack.

He'll chat with Tara Dillard, a garden designer whose patio garden has changed over time from full sun to mostly shady. They show how to turn such a dim space into a haven for colorful, shade-loving plants.

If your azalea leaves have yellow speckles, you may have lace bugs in your garden. These pesky critters zap the sap from the plant's leaves. They can badly hurt azaleas' health in the summer.

Reeves shows a way to manage lace bugs without putting chemicals on the entire plant. His approach involves simply dousing the ground around the azalea. You'll see the contrast between a bush still riddled with lace bugs and a ground-treated one.

GPB and the UGA College of Agricultural and Environmental Sciences coproduce "Gardening in Georgia." The 2007 season is underwritten by McCorkle Nurseries with support from the Metro Atlanta Landscape and Turf Association.

For more on "Gardening in Georgia," see www.gardeningingeorgia.com.

(Katherine Tippins is a student writer with the University of Georgia College of Agricultural and Environmental Sciences.)