Generic Materials Search: chitin

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View the OMRI Generic Materials List Glossary in PDF format here.
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Chitin
Allowed
Crop Fertilizers and Soil Amendments
Nonsynthetic
Must be from a nonsynthetic source such as sea animals or fungi. Must not contain prohibited pesticides, synthetic extractants, or other prohibited substances (e.g., synthetic acids and bases). See also CHITIN – PESTICIDE and CHITOSAN. See Glossary for definition of "chitin."
205.105(a)
Chitin – pesticide
Allowed with Restrictions
Crop Pest, Weed, and Disease Control
Nonsynthetic
For use as a pest lure, repellent, or as part of a trap, or as a disease control. May be used for other pesticidal purposes, such as nematicidal purposes, only if the requirements of 205.206(e) are met. See also CHITIN. See Glossary for definition of "pesticide."
205.105, 205.206(b)(3), 205.206(d)(2) & 205.206(e)
Chitosan
Prohibited
Crop Pest, Weed, and Disease Control
Synthetic
A polysaccharide composed of repeating glucosamine units; obtained by de-acetylation of chitin. May be used as either an adjuvant or inert ingredient in combination with active pesticidal substances [excluding 25(b) exempt pesticides]: see also INERTS – LIST 4.
205.601(m)
Nematicides – nonsynthetic
Allowed with Restrictions
Crop Pest, Weed, and Disease Control
Nonsynthetic
May be used as a pesticide only if the requirements of 205.206(e) are met. See also CHITIN.
205.206(b)(3), 205.206(d)(2) & 205.206(e)