Pesticides Essay, Research Paper

Pesticides include insecticides, herbicides and fungicides, which kill insects, weeds, and are harmful to humans. They often have direct or indirect effects on other living things. Synthetic pesticides are chemical compounds; some are more toxic than others. Synthetic pesticides can release compounds that are more toxic than the original pesticides when they break down in the environment. Some called persistent materials just “hang around” and don’t break down for long periods of time. Botanical pesticides, almost all of which are insecticides, are derived directly from plants or animals. It breaks down rapidly in the environment, usually in a matter of hours or days, and are not known to accumulate in the environment. Materials such as lead arsenate, salt, copper, soap, sulfur, oil and wood ashes, have been used as pesticides with varying levels of success and varying rates of toxicity. Most are still used today, fortunately with a better understanding of their effects. No pesticide is considered “safe.” Using pesticides may be necessary at times, but in many cases there are alternatives that are often more effective in the long run and less harmful to the environment and the applicator.