When Was Paris Green Used?

By Anna Duncan

Paris Green is a chemical compound that was widely used as a pesticide, herbicide, insecticide, and rodenticide in the late 19th and early 20th centuries. It was discovered in the 1860s by a French chemist named Pierre Michel Eugene Chevreul, who named it “Vert de Paris” or “Paris Green” due to its vivid green color.

What is Paris Green?

Paris Green is a combination of copper(II) acetate and arsenic trioxide. It has a bright green color and was used to kill insects and rodents that were harmful to crops. The arsenic in Paris Green acts as a poison that kills pests upon contact.

When Was Paris Green Used?

Paris Green was first introduced in the United States in the late 1800s. Its use became widespread during the early 1900s when farmers began using it to protect their crops from insects and rodents. It was also used as a dye for textiles, wallpaper, and even food.

Why Was Paris Green Used?

Paris Green was an effective pesticide because of its potency against pests such as caterpillars, beetles, and grasshoppers. It was also cheap and readily available at the time. Farmers preferred Paris Green over other pesticides because it was easy to apply and did not harm beneficial insects like bees.

The Dangers of Paris Green

Despite its effectiveness as a pesticide, Paris Green had serious health risks associated with it. The arsenic content in Paris Green made it toxic to humans, animals, and plants alike. Exposure to high levels of arsenic could cause skin irritation, lung problems, gastrointestinal issues, nerve damage, and even death.

The Legacy of Paris Green

The dangers of Paris Green were eventually recognized by the scientific community in the mid-1900s. The use of Paris Green as a pesticide was banned in many countries, including the United States. Today, safer alternatives to Paris Green are widely available.

The Bottom Line

Paris Green was a highly effective pesticide that was widely used in the late 19th and early 20th centuries. However, its toxicity made it dangerous to humans and the environment. The legacy of Paris Green serves as a reminder of the importance of using safe and sustainable methods for pest control.