Insect repellents and mosquito nets are useful to protect against mosquito bites. Insect repellents containing DEET are the most effective. Insecticides are distinct from non-insecticidal repellents, which repel but do not kill. Insecticides, larvicides, rodenticides, Lethal ovitraps and repellents can be used to control vectors. All DEET-containing mosquito repellents were active. Active migration occurs through repellents and attractants. Use of mosquito repellents and bed nets are two effective methods. Beside fogging there are some other insect repellents for indoors and outdoors. For individual protection, the most effective insect repellents are based on DEET or picaridin. Use mosquito coils, repellents and electric vapour mats during the daytime. Biocidal products include, for example, insect repellents and disinfectants used in hospitals. Anthranilate-based insect repellents have been proposed as replacements for DEET. Some insect repellents are not recommended for use on younger children. Chemical repellents or firearms are effective for controlling pests in soybean fields. Protection of visitors to endemic areas can be achieved through the use of insect repellents.