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1954-55 Theatre Catalog, 12th Edition, Page 168 (134)

1954-55 Theatre Catalog, 12th Edition
1954-55 Theatre Catalog
1954-55 Theatre Catalog, 12th Edition, Page 168
Page 168

1954-55 Theatre Catalog, 12th Edition, Page 168

Black Light Pest Control

A New Device Which Uses Black Light and an Electric Grid To Eliminate the Problem of Night-F lying Insects at D-Ps

By the very nature of the operation, drive-in theatres are prime targets for all types of night-flying insects and pests. The open area and the many sources of light, such as that found around the concession buildings, the ticket booths, and on the screen, make an outdoor theatre a perfect lure for these annoying insects. Therefore, the matter of pest control is extremely important, since there are very few persons who are willing to share their evening at a drivein with a moth or a mosquito.

A Possible Solution

A device which may help to end the insect problem at an outdoor theatre is the Insectocutor. The Insec'tocutor is a unit which consists of an electric grid and a special "black light" tube. The insects are drawn to the unit by the black light, and are instantly killed when they touch the electric grid.

In the past there has been considerable discussion resulting in claims rela tive to the effectiveness of light traps as a control for night-dying insects. However, it is only with the development of black light, which was accomplished through the cooperation of the General Electric Company, U. S. Department of Agriculture, and the Gardner Manufacturing Company, that a tool was provided, which when used with properly designed traps, can provide a high measure of relief from the troublesome prob I34

BRIEF: One of the most important problems involved in the operation of a drive-in theatre is that of pest control . . . It is important . . . both for reasons of health and sanitation . . . and for patron comfort that night-flying insects such as mosquitoes and moths . . . are not allowed to get out of hand . . . This article describes a device which is designed to effectively control pests in the outdoor theatre . . . particularly around the brightly lighted areas such as the concession stand . . . and the ticket booth . . . Through the use of a black light . . . which has the ability to attract insects . . . and draw them away from other light sources . . . there is information dealing with the construction of these units . . . how they operate . . . and how they may be best used for drive-in theatre operation.


lem of night-flying insects around illuminated areas, such as drive-ins.

Black Light Background

The name black light is probably not a correct description of this source, for there is only a small part of the visible spectrum omitted by this tube; that is, all of the violet band and less than half

INSECTOCUTORS may be located near the ticket booth (lelt) as at the South City. Philadelphia. They are eitective at places like the Vic Rice Golf Range, Trenton, with acute insect problems.

of the blue-band. The major portion of the energy released by this tube is in the near ultra-violet, that part of the spectrum between the visible band and the therapeutic band. This part of the ultra violet hand does not adversely affect the eye or skin of humans or animals, but-apparently creates positive reactions in photo-sensitive insects.

To provide some yardstick to measure the effectiveness of this new energy source over the other energy or light sources as to its attractiveness, the results obtained in work done by the Gardner Manufacturing Company in collaboration with the U. S. Department of Agriculture, at San Benito, Texas, is cited.

Prior to the development of the black light, the most effective light source for attracting insects was the Mercury Vapor Lamp, and in the field work at San Benito, there was a battery of different type traps, and different light sources and wattages, all operating in the same locality. In other words, each trap and light source was exposed to relatively the same insect population. A trap equipped with a 200 watt Mercury Vapor lamp was mounted mid-way between two similar traps equipped with black light tubes, each spaced about 15 feet on each side of the Mercury Vapor light traps. On daily checks on the containers under each trap, it was found that the black light traps would be practically full, and

1954-55 Theatre Catalog, 12th Edition, Page 168