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1954-55 Theatre Catalog, 12th Edition, Page 160 (126)

1954-55 Theatre Catalog, 12th Edition
1954-55 Theatre Catalog
1954-55 Theatre Catalog, 12th Edition, Page 160
Page 160

1954-55 Theatre Catalog, 12th Edition, Page 160

HERE [5 HOW ONE treatment with "Televur"

Weed Killer cleaned up weeds and grass along

a fence, similar to those found in drive-ins. (Photograph courtesy Clcnn Counly. Cali/Drum.)

Mosquitoes Need Water

As for mosquitoes, it is well known that they lay their eggs where moisture conditions are most likely to be favorable for development of later stages in the life cycle. There is a period of a week or so in their lives, when mosquitoes cannot live without water. For this reason, elimination of standing water has long been stressed as one of the most important measures in mosquito control. Standing water does not necessarily mean acres of swampland. It includes water that may collect in empty tin cans in the trash pile, adjacent stagnant ditches, in puddles throughout the parking area, and in cisterns and rain barrels.

Where standing water cannot be eliminated, some other control measure is necessary. Covering the surface with oil is probably the oldest method of controlling mosquito larvae in water. More recently, DDT, particularly in an oil carrier, has been widely used for water surface applications to destroy larvae and kill adult mosquitoes as they emerge.

In Dallas, Texas, the City Health Department has had good results in controlling mosquito larvae with an emulsion concentrate containing 24 per cent methoxychlor*one pint in five gallons of water. The same formulation also has given good kill among dies that were known to be resistant to -DDT.

The U. S, Department of Agriculture has also reported that a long-lasting DDT spray, applied to trees, bushes, and

grass in an outdoor area will cut down the number of mosquitoes during daylight hours for several weeks, while quick-killing pyrethrum or allethrin "spaced sprays will control the" pests during early evening when they are continuously flying.

Drive-In Buildings

For refreshment stands and other buildings on the theatre grounds, screens on doors and windows are the most practical way to keep insects out. But they will not do the whole job. That's where chemical sprays help. For indoor spraying, a powder formulation of methoxychlor is one of the safest residual insecticides for fly control. (It is available in two formulations-a 50 per cent wettable powder and a 24 per cent emulsifiable oil.) Use three to four pounds of the wettable powder in 10 gallons of water.

Fogging machines, vaporizers and other high-speed insecticide applicator units are specialized machinery, and should be set up and operated by experts. Chemicals for this type of equipment should be selected on the basis of safety to your employees and your audiences, as well as on their effectiveneSS against insects.

If the grounds are put in good shape at the beginning of the season, and good sanitation practices are carried out throughout the season, you can usually count on "chemical fly swatters" to do their part of the job.

A DUMP NEAR your drive-in lhealro, or on the grounds. may be a constant source of fly and mosquito inleatation, and should be cleaned out.

1954-55 Theatre Catalog, 12th Edition, Page 160