. Cockroaches : how to control them. Cockroaches. bn-2288 Female Australian cockroach. (1% times natural size.) Make limited applications; do not treat entire floors, walls, or ceilings. Treat only along base- boards, under cupboards, and in similar places where cockroaches hide. Do not treat surfaces used for the preparation of food. Do not treat storage spaces that contain food. The following list names the most commonly used insecticides, gives the proper strength of each spray or dust, and indicates the effectiveness of each. Dusts can be bought already prepared and so can oil sprays. Emul
. Cockroaches : how to control them. Cockroaches. bn-2288 Female Australian cockroach. (1% times natural size.) Make limited applications; do not treat entire floors, walls, or ceilings. Treat only along base- boards, under cupboards, and in similar places where cockroaches hide. Do not treat surfaces used for the preparation of food. Do not treat storage spaces that contain food. The following list names the most commonly used insecticides, gives the proper strength of each spray or dust, and indicates the effectiveness of each. Dusts can be bought already prepared and so can oil sprays. Emulsions can be prepared easily by following the directions on the label. Chlorpyrifos (Dursban) : oil solution or water emulsion. Diazinon : oil solu- tion or water emulsion. Malathion: 2-percent oil so- lution or water emulsion; or 4- or 5-percent dust. Propoxur (Baygon) : 1-per- cent oil solution or water emul- sion. Ronnel: 2-percent oil solution or water emulsion. These insecticides kill the cock- roaches present and leave a resi- due on the treated surface. The residue does not keep cockroaches out, but those that come in con- tact with it are killed. A single treatment in the right places gives protection for several weeks. A liquid insecticide is often the best for use in the home. A dust or water-based spray may be used when there is danger of fire from oil-based liquids. Both a liquid and a dust may be used when cockroaches are abundant, diffi- cult to control, or firmly estab- lished. APPLICATION Whether spray or dust is used, treatment should be limited to baseboards, cracks, and places where cockroaches hide. Spray Apply a liquid insecticide with an ordinary household plunger- type sprayer that produces a coarse spray to wet the surface being treated. If the mist is too fine, it will float away in the air. Apply enough spray to moisten surfaces thoroughly, but not so much that the liquid begins to drip or run. Professional pest-control opera- t
Size: 1728px × 1447px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
