insect killer

Insecticide is a type of chemical used to kill insects, like those that have infested a house or a farmer's crops. Words that end in -cide usually have to do with killing, such as genocide, suicide, and patricide. Another is insecticide, which is a word for a substance that kills insects and bugs.Insecticide is a type of chemical used to kill insects, like those that have infested a house or a farmer's crops.Most household bug sprays contain one or more insecticides in the pyrethroid family. Pyrethroids are synthetic chemicals designed to mimic the natural oils found in chrysanthemum flowers [source: National Pesticide Information CenterPesticides are chemicals designed to kill or harm pests. They include insecticides used for insect control, herbicides used for weed control, fungicides used for fungi and mould control, and rodenticides used for rodent control.