Generic Materials Search: coppers, fixed

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View the OMRI Generic Materials List Glossary in PDF format here.
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Bordeaux Mixes
Allowed with Restrictions
Crop Pest, Weed, and Disease Control
Synthetic
Must be used in a manner that minimizes copper accumulation in the soil. See also COPPERS – FIXED and HYDRATED LIME. See Glossary for definition of "Bordeaux mix."
205.601(i)(3) & 205.601(i)(4) Copper sulfate and hydrated lime.
Copper
Prohibited
Crop Fertilizers and Soil Amendments, Crop Pest, Weed, and Disease Control
Synthetic
Copper products may not be used as an herbicide. See also COPPERS – FIXED. Copper micronutrient sources that are not explicitly allowed are prohibited. Copper ammonia base, copper ammonium carbonate, copper nitrate, and cuprous chloride are prohibited sources of copper used for plant nutrients. See also MICRONUTRIENTS – SYNTHETIC listings.
205.105(a), 205.601(i)(2) & 205.601(j)(6)(ii) As plant disease control… Coppers, fixed… Shall not be used as herbicides. Microunutrients—not to be used as a defoliant, herbicide, or desiccant… copper.
Coppers – fixed
Allowed with Restrictions
Crop Pest, Weed, and Disease Control
Synthetic
Copper products that are exempt from tolerance by the EPA [40 CFR 180.1001(b)(1)] may be used for plant disease control. These include: Bordeaux mixture, basic copper carbonate (malachite), copper-ethylenediamine complex, copper hydroxide, copper-lime mixtures, copper linoleate, copper oleate, copper oxychloride, copper octanoate, copper sulfate basic, copper sulfate pentahydrate, cupric oxide, cuprous oxide. Copper-based material must be used in a manner that minimizes accumulation in the soil and shall not be used as herbicides.
205.601(i)(2) & 205.601(i)(3)
Pressure-treated Lumber
Allowed with Restrictions
Crop Management Tools and Production Aids
Synthetic
May be treated with nonsynthetic materials and individual treatments that are on the National List for disease control. See also ARSENATE-TREATED LUMBER; BORON PRODUCTS – SYNTHETIC; COPPERS – FIXED; and COPPER SULFATE.
205.206(f)