2,4-DB

2,4-DB is a selective herbicide that is used to control broadleaf weeds and woody plants. It is part of the Phenoxy herbicide group, which are known for their plant hormone-like activity.

Chemistry

2,4-DB is a chemical compound with the molecular formula C10H10Cl2O3. It is a derivative of 2,4-D, and is often used in its salt or ester form. The compound is a white crystalline solid at room temperature.

Uses

2,4-DB is primarily used in agriculture to control broadleaf weeds in cereal crops, pastures, and non-crop areas. It is also used in the control of woody plants in forests. The herbicide is absorbed by the plant through the leaves and roots, and is then transported to the growth points of the plant.

Health and Environmental Effects

Exposure to 2,4-DB can cause irritation to the eyes, skin, and respiratory tract. Long-term exposure can lead to more serious health effects such as damage to the liver and kidneys.

In the environment, 2,4-DB is moderately persistent and can leach into groundwater. It is toxic to aquatic organisms and can cause long-term adverse effects in the aquatic environment.

Regulation

In the United States, 2,4-DB is regulated by the EPA. It is classified as a Restricted Use Pesticide (RUP) due to its potential to cause harm to the environment and non-target organisms.

In the European Union, the use of 2,4-DB is restricted under the EU Pesticides Regulation.

See Also

• 2,4-D
• Phenoxy herbicide
• Herbicide

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