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Biochar and Pesticides

Biochar is similar to charcoal from a wood fire, but not exactly the same. It is made by burning plant material in conditions with low oxygen. It is sometimes added by farmers and gardeners to their soils.

Biochar can bind to pesticides in soil. The effect of biochar on pesticide residues in soil varies. Some pesticides may bind to biochar more strongly than others. The binding potential depends on many things. Biochar may be useful because it could potentially hold onto a pesticide and make it less likely to move down through soil toward shallow groundwater.

Just as there are many types of plants, there are many types of biochar. Many factors affect the structure and how it works in soil. The type of plant material and burning conditions affect the structure of a biochar. This may also affect whether a specific pesticide ingredient would bind to it.

If you have questions about pesticides and soil, or any pesticide-related topic, please call NPIC at 800-858-7378 (8:00am - 12:00pm PST), or email at npic@ace.orst.edu.

Additional Resources

Last updated May 02, 2019

Related Topics:

What are pests?

Learn about a pest

Identify a pest

Control a pest

Integrated Pest Management

What are pesticides?

Herbicides

Disinfectants

Fungicides

Insecticides

Natural and Biological Pesticides

Repellents

Rodenticides

Other types of pesticides

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