Boston Ivy (Parthenocissus tricuspidata) is a deciduous vine that is often grown against buildings and houses. The ivy has blue-tinged fruits and bright red foliage in the autumn. It does well in poor soil and doesn't discriminate between sun and shade. If Boston ivy has crept up your aluminum siding and is damaging your home, getting rid of the vine may require some elbow grease as the tendrils or "holdfasts" can be difficult to remove, according to the University of Connecticut Horticulture Department.
Snip off the bottom of the Boston ivy, where the plant touches the ground. The goal is to sever the plant so that the vine stops getting the nutrients it needs to survive.
Spray weed killer to the roots as you cut. Wait for the roots to die--which can take a few days or a few weeks. As per the instructions on the bottle, re-apply the weed killer after a few days if you're not seeing results. Do not use weed killer right before a rain or you may wash away the chemicals before they have time to saturate the roots.
Allow the top of the Boston ivy to dry up, turn brown, and die. It's much easier to remove ivy from aluminum siding once it's dead.
Wear garden gloves and rip the ivy off the siding. Climb the ladder to get as high up as possible. Use the pruning shears if necessary to cut away stubborn, tangled pieces of vine.
Gently scrub the tendrils that remain off the aluminum siding with a soft-bristle brush. Work in circular motions, dipping the brush into a bucket of mild soap and water. Don't use anything harder than a soft-bristle brush.
Throw the Boston ivy in a sealed plastic trash bag and dispose of it.