Measure the leaves of your moth orchid. Attempt to cut a specimen whose foliage is at least 6 inches long. Plants with shorter leaves are not sufficiently developed for the technique to be successful.
Dip a clean cloth in alcohol. Use it to sterilize the blades on your shears to keep pathogens from infecting the orchid.
Find a node on the flower stalk bearing a dead bloom. Cut the stem above the node at a 45-degree angle and discard it. The node is a dormant bud that sometimes breaks from dormancy when you trim the stem above it. When the technique works, the node swells up within one month as it produces a new orchid flower.