Flies and other flying insects can be a real aggravation when they invade your home, porch, patio or garden. Black Flag Sticky Fly Paper traps houseflies, mosquitoes and other annoying flying pests anywhere flying insects are a nuisance, both indoors and outdoors. The insect trap provides long-lasting protection after opening - once they land on the sticky fly paper, they never leave. Before using the fly paper trap, bring the fly paper trap to room temperature if cold. Slowly pull out the ribbon using a twirling motion. Hang the sticky fly paper trap away from sunshine. To control gypsy moths, wrap the tree trunk with fly paper at a height of approximately 4 feet. As gypsy moth caterpillars make their way up the tree to reach the leaves, they must attempt to cross the fly trap. Contact with the sticky fly paper surface prevents the insect from crawling further. Remove the insect trap when it is full of insects - wrap in newspaper and discard in the trash.