Insecticidal and fungicidal activities of chitosan and oligo-chitosan

文献类型: 外文期刊

第一作者: Tan, TW

作者: Tan, TW

作者机构:

关键词: chitosan;oligo-chitosan;insecticidal activity;fungicidal activity;pathogens;oligomer

期刊名称:JOURNAL OF BIOACTIVE AND COMPATIBLE POLYMERS ( 影响因子:1.756; 五年影响因子:2.073 )

ISSN: 0883-9115

年卷期: 2003 年 18 卷 5 期

页码:

收录情况: SCI

摘要: 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 Hubner. 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.

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