Gardener's Supply Co. Summer Weight Garden Fabric 6' x 50' BENEFITS- Ideal for summertime pest control, this garden cover effectively screens out Japanese beetles, potato beetles, cabbage worms, leaf miners, carrot flies and most vine borers. Fabric protects your plants from insect pests, cold temperatures and too much sun. COLD- it provides frost protection down to 28 F. HOT- It transmits 85% of the light to your plants without allowing heat build-up MATERIALS- Featherweight polypropylene GARDENER'S SUPPLY EXCLUSIVE