Chitosan | Agricultural Marketing Service

Scope

Crops

Status

Complete

NOSB Review Documents

January 2004 Petition (pdf) requesting addition to §205.601 for use as a pesticidal inert ingredient (adjuvant)
2004 Technical Report (pdf)
August 2005 NOSB Subcommittee Proposal (pdf)
August 2005 NOSB Recommendation (pdf) (page 5229)
October 2019 Petition (pdf) requesting addition to §205.601 for use as a plant disease control
2020 Technical Report (pdf)
June 2020 Petition (pdf) requesting addition to §205.601 for use as a production aid
2020 NOSB Subcommittee Proposal and NOSB Recommendation: none, petition determined insufficient by Subcommittee (pdf) (page 65) (production aid)
October 2021 NOSB Subcommittee Proposal (pdf) (plant disease control)
October 2021 NOSB Recommendation (pdf) (plant disease control)

Rulemaking

Final Rule, published December 10, 2007 (72 FR 69569), clarifies that chitosan is covered under “EPA List 4” listing on §205.601(m)
Not recommended for rulemaking by NOSB (2020, 2021)

Related Terms

Deacetylated chitin; EPA List 4 Inerts; Inert ingredients; Poliglusam; Poly(beta-(1,4)-2-amino-2-deoxy-d-glucose); Poly(beta-(1,4)-D-glucosamine); Poly-d-glucosamine; Polyglusam.

Date Updated

08/10/2022