> > > >

1954-55 Theatre Catalog, 12th Edition, Page 159 (125)

1954-55 Theatre Catalog, 12th Edition
1954-55 Theatre Catalog
1954-55 Theatre Catalog, 12th Edition, Page 159
Page 159

1954-55 Theatre Catalog, 12th Edition, Page 159

gallons of water is enough to control weeds on a 200 square foot area for an entire season or longer. It is non-volatile, non-flammable, and low in toxicity to people or animals under conditions recommended for use. A seasonis supply can be stored in a small space.

ttTelvariy W weed killer works principally through the roots, so it should be applied when there will be enough rainfall to carry the chemical down into the root zone. Applied in the spring, before growth starts, it will prevent plant growth throughout the season.

ttTelvar" W may be applied to dense weed growth provided suHicient water is used. But better results are usually obtained if vegetation is mowed and matted growth cleared away, in order to apply the material on the ground.

"Telvarii' W can be applied with power sprayersxosuitable for wettable powder

mixtures. The sprayer should have continuous agitation to keep the chemical in suspension, and all openings in screen and line strainers should be equal to or larger than 50 mesh.

Uniform coverage is essential. Areas missed by the sprayer may show normal growth unless roots extend into the treated area. Usual recommendations are one pound per 1,000 square feet or about 40 pounds per acre to achieve control for one season or longer. Where hard-to-kill weeds such as established deep-rooted perennials are present, or where longer control is desired, up to twice this dosage may be necessary.


With all herbicides, certain precautions are necessary. Do not spray weed killers on or near valuable plants or trees or in

AN EXAMPLE OF HOW WEEDS may be controlled can be seen in these two illustrations..'l'he photo above shows speaker stands at a Massachusetts drive-in. where clumps of weeds are growmg around the base. The illustration below shows the some theatre otter the speaker posts have been treated.


areas into which their roots may extend. Do not treat locations from which the chemical may be washed into areas where roots of desirable plants may come in contact with the chemical. Apply chemicals with care to prevent the spray or dry powder from drifting onto lawns, shrubbery, gardens, trees, or cropland. When working around irrigation systems, be careful not to contaminate the water with weed killer.

Weed killers may also contaminate fertilizers, insecticides, fungicides, or seeds, so they should be kept separatee in storage and in use. Sprayers which have been used for weed killers should not be used for spraying insecticides, fungicides or fertilizers on crops, ornamentals, lawns, etc. After you have used a itsoil sterilant," be sure to clean the tank, pump and all lines, booms, and nozzles before using the same equipment to apply other weed killers to crops, lawns, or ornamentals.

In the hands of qualified applicators, chemical weed killers have become an important tool in sanitation and maintenance. They do a thorough job with minimum labor cost.


When DDT was released for civilian use after World War II, drive-in managers were among those who thought the fly and mosquito problem was over. A few puffs of this magic stuff seemed enough to keep the grounds free of dies, mosquitoes, and even ticks and other insects for most of the season.

But it soon turned out that chemicals were no substitute for good sanitary practices. Both fiies and mosquitoes began to show natural resistance to DDT and some related chemicals. It took heavier dosages to do the job, and still the bugs came back faster than they had in the beginning.

Some new and more potent chemicals are on the horizon, but they are only in the experimental stage. Meanwhile, what can you do around your theatre to keep down files and mosquitoes?

The first place to tackle fiy and mosquito problems is at the breeding places. By cleaning up breeding places, you cut down the number of insects that have to be killed during the season-and make the job easier.

HouseHies breed in decaying organic matter. Because of their liking for unwholesome breeding places, they spread germs and filth in alarming measure. But: iiies can be reduced substantially by good tipolicingf' Cleaning up all refuse promptly and burning or burying it eliminates the most common source of fly infestation. Rubbish piles, garbage, and dumps Should be covered up. It is particularly important to keep the area clean around refreshment stands and food storages.

It would also be worthwhile to insist on control of any fly-producer like a dump within several blocks of an outdoor theatre, and by all means, explore the immediate vicinity for small tisneakit breeding spots.
1954-55 Theatre Catalog, 12th Edition, Page 159