Make a Light Trap

Make a Light Trap

A simple light trap can be made from a funnel, a round gallon can and a light. You can buy a large funnel or make one by cutting the bottom out of a gallon milk or detergent container. Place the funnel on the can as shown in the illustration, and suspend the light slightly above the funnel. Insects that fly into the light bulb fall down the funnel and are trapped in the can. The spout of the funnel should be large enough to let the insects drop through it easily, but not so large as to let the insects fly out again. A few strips of one inch wide newspaper in the can will give insects a place to hide so they are less likely to try to escape. When getting the insects out of the trap, put the can and funnel together into your collection net before removing the funnel. This will prevent active insects from escaping.


Using a Black Light

Black lights, or ultraviolet lights, are more attractive to insects than lights of other colors (wave lengths). Black lights are made like fluorescent tube lights and require the same kind of fixture. The only thing that is different is the light tube itself, which you may have to special order from a light fixture store. Black light tubes come in different sizes, but some may be more available than others. Get the black light tube first and then get the proper light fixture for it. Mount the light fixture on a board with an extension cord so you can use the light in different places. Use a white sheet as a backdrop for the light so you can easily spot the insects as they come to the light. Drape the sheet over a clothes line, stretch it between poles or hang it on a fence or wall. Collect the insects as soon as they land on the sheet because some kinds of insects will soon run away and hide.

Never look directly at an operating black light. The ultraviolet rays may injure your eyes.