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Mosquito coil Mosquito coil. A mosquito coil is a mosquito-repelling incense, usually made into a spiral, and typically made using dried paste of pyrethrum powder. The coil is usually held at the center of the spiral, suspending it in the air, or wedged by two pieces of fireproof netting to allow continuous smoldering.
Mosquito control is a vital public-health practice throughout the world and especially in the tropics because mosquitoes spread many diseases, such as malaria and the Zika virus. Mosquito-control operations are targeted to multiple problems: Nuisance mosquitoes bother people around homes or in parks and recreational areas;
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During the process of finding a way to draw such a long building, Ito was inspired by the shape of a mosquito coil and decided he could make the building long by having it spiral. [12] Ito has noted that the spiral is a "mysterious pattern" and described writing Uzumaki as an attempt to learn the secrets of the spiral.
A large part of the mosquito's sense of smell, or olfactory system, is devoted to sniffing out blood sources. Of 72 types of odor receptors on its antennae, at least 27 are tuned to detect chemicals found in perspiration. [36] In Aedes, the search for a host takes place in two phases.
A significant part of this was the sanitation program put in place by Gorgas. Nearly $20 million was spent on health and sanitation during the ten years. Gorgas continuously faced opposition because of the cost- and manpower-intensive nature of the eradication work, as well as entrenched ideas that mosquitoes were irrelevant to disease spread.
The screw-worm fly was the first pest successfully eliminated from an area through the sterile insect technique, by the use of an integrated area-wide approach.. The sterile insect technique (SIT) [1] [2] is a method of biological insect control, whereby overwhelming numbers of sterile insects are released into the wild.
A typical flyswatter. A flyswatter (or fly-swat, fly swatter [1]) usually consists of a small rectangular or round sheet of a lightweight, flexible, vented material (usually thin metallic, rubber, or plastic mesh) around 10 cm (4 in) across, attached to a handle about 30 to 60 cm (1 to 2 ft) long made of a lightweight material such as wire, wood, plastic, or metal.