Carpet beetle larvae wander around more than clothes moth larvae. They may be scattered all over the house from attic to basement. They can live on the hair, lint, and other organic matter that accumulates in corners, in cracks in the flooring, behind baseboards, under radiators, in partitions, and in similar places. It is particularly important to clean thoroughly as many such places as possible. Then apply a spray containing 2 percent of chlordane or 0.5 percent of lindane. Use these sprays only in closets, around baseboards, and along the edges of rugs or floors. To protect rugs, clothing, blankets, and upholstery, use the same things as recommended for clothes moths.

HOUSE SPIDERS cause no real damage but are annoying because of the webs they spin in corners and under furniture. Vacuum cleaning removes the webs, spiders, and their egg cases. If they continue to recur, apply a spray containing 2 percent of chlordane or 0.5 percent of lindane around windows, doors, or other places where the spiders might get in. Use the same spray in corners or under furniture where the spiders might live.

HOUSE CRICKETS can be controlled with sprays containing 2 percent of chlordane or 5 percent of DDT, or with dusts containing 5 percent of chlordane or 10 percent of DDT. Apply the spray or powder around entrances and in closets, around baseboards or in other places where the crickets may hide.

PSOCIDS or booklice thrive best where there is high humidity. They are often abundant in new homes until the plaster and wood become thoroughly dried out. Anything that can be done to lower the humidity will be helpful.

The insects live in cracks, wall spaces, or on the walls themselves. A 2 percent chlordane or 0.5 percent lindane spray can be applied in cracks or protected places. Where entire walls or ceilings have to be treated, use a 5 percent DDT spray. Household fly sprays will kill the psocids that are hit with the spray, but have no lasting effect.

If psocids get into dry food products in the kitchen, follow the suggestions given for the control of pantry pests.

BED BUGS are readily controlled with a 5 percent DDT spray. It should be applied lightly but thoroughly to infested mattresses, bed frames, and the wall surfaces in the immediate area of the bed. Upholstered furniture should also be sprayed if it becomes infested.

WASPS, HORNETS, and yellow-jackets may nest around homes during the summer, or they may have nests in the ground in lawns or gardens. A chlordane or DDT spray or powder applied into the nest will kill the insects. Wait until dusk or after dark to use the insecticide. The insects are all in their nests then, and are quiet so you can avoid being stung.

A DDT spray on screens, porches, and around windows and doors will help prevent wasps from getting into the house. Some kinds of wasps find their way into attics or walls of homes to spend the winter. Plugging up possible entries around eaves, window frames, or other places will help keep them out. Chlordane or DDT sprays or dusts can be used to kill those which get in.

TERMITE control may be relatively simple in some cases, or it may be rather difficult. The control measures required will vary with the circumstances relating to an infestation. Sufficient detail cannot be given here to provide satisfactory directions for control. If you have a termite infestation, study a good bulletin before trying to do the work yourself, or call in a reliable pest-control operator.

Subterranean termites live in nests in the soil and must maintain contact between the soil with its moisture and the wood where they are working. The basic principle of all termite control is to break the line of contact between soil and wood. This can be done by several means, including structural changes, mechanical barriers, and soil poisons.

FRUIT FLIES or vinegar gnats live in ripe fruits, jelly, garbage, rotting vegetables, around cracked or leaking fruit jars, or wherever they can find fermenting plant material. Prompt garbage disposal and keeping the garbage in tightly covered containers will help to prevent the production of large numbers of these flies. Treating screens and porches with a 5 percent DDT spray will aid in preventing them from getting into the house. Aerosols or fly sprays can be used to kill the flies that are present in a home. If the flies are developing inside the home, satisfactory control will not be obtained until the source of infestation is discovered and eliminated or destroyed.

L. S. HENDERSON is the assistant leader of the division of stored product insect investigations in the Bureau of Entomology and Plant Quarantine. He holds two degrees from the University of Kansas. An employee of the Department of Agriculture since 1938, he conducted research in tests on insecticides and the control of household insects until 1946, when he became an assistant leader of the division of insects affecting man and animals. He was assigned to his present position when the new division was established in October 1951.

Boxelder bug.