Vegas roach trap

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The Vegas roach trap or Las Vegas roach trap refers to the serendipitous discovery, in Las Vegas, of a cockroach trap consisting of a jar, coffee grounds, and water, placed against a wall. Reported as extremely successful in eliminating cockroaches by Las Vegas local news and the KVBC bugcam, the homemade trap is made from any glass jar containing used coffee grounds and water. Placing the mouth of the jar next to the wall, the roaches are able to crawl up the wall and into the jar, to drown, or at least never escape since there is great probability that they are unable to climb the glass walls. Apparently, only cockroaches are attracted to it. The Vegas roach trap is so called by the popular name of the city of its discovery.

[edit] Construction

The trap is constructed from used coffee grounds in a canning or pickle jar, slightly submerged in water. It is usually placed against the outside wall of a house giving cockroaches the opportunity to fall in. An alternative method involves coating the outside of the jar with scotch or packing tape in order to give sufficient traction for cockroaches to climb into the jar without the requirement of placement next to a wall. The trap works because cockroaches are unable to climb out of the bottle due to the glass sides, causing them to drown in the water. More water is often used in the case of flying cockroaches.