Insecticidal and Fungicidal Activities of Chitosan and Oligo-chitosan

Autor:	Huizhu Yuan, M. I. Zhang, Tianwei Tan, Changhui Rui
Rok vydání:	2003
Předmět:	Polymers and Plastics 010405 organic chemistry Bioengineering Biology 01 natural sciences 0104 chemical sciences Biomaterials Fungicide Chitosan 010404 medicinal & biomolecular chemistry chemistry.chemical_compound chemistry Botany Materials Chemistry Food science
Zdroj:	Journal of Bioactive and Compatible Polymers. 18:391-400
ISSN:	1530-8030 0883-9115
DOI:	10.1177/0883911503039019
Popis:	The activity of chitosan and oligo-chitosan on several plant insects and pathogens were studied. Chitosan was active against lepidopterous and homopterous insects; the mortality was 80%. The insecticidal activity of chitosan to Plutella xylostella L. was higher than that to Spodoptera exigua Hübner. The mortality of six types of aphids was generally 60–80%, and the highest was 99.7%. Some fungicidal activity by oligo-chitosan was observed on 12 plant pathogens. The inhibition effect of oligo-chitosan to plant pathogens was improved with increasing oligomer concentration. The highest inhibition rate (80%) was against Phomopsis asparagi (sacc.a) Bubak (95%) and the inhibition rate against Fusarium oxysporum (Schl.) f. sp. Cucumernum owen, Rhizoctonia solani Kuhn and Fusarium oxysporum Schl. F. Sp. Uasinfectum (Atk.) Snyd. & Hans.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::48eb37b527dd8dd6b3f801b13e4c67bc https://doi.org/10.1177/0883911503039019 Zobrazit plný text záznamu