黄皮新肉桂酰胺B对柑橘全爪螨Panonychus citri的生物活性  

Bioactivity of lansiumamide B against Panonychus citri

作　　者：冯秀杰[1] 张国宾[1] 周星洋 邓松清[1] 万树青[1] 

机构地区：[1]华南农业大学农药与化学生物学教育部重点实验室,广州510642

出　　处：《植物保护学报》2015年第5期763-769,共7页Journal of Plant Protection

基　　金：广州市科技计划(2010Y1-(27))

摘　　要：为探究黄皮新肉桂酰胺B对柑橘全爪螨Panonychus citri的生物活性,分别采用载玻片浸渍法、叶片残毒法和叶圆片法研究了黄皮新肉桂酰胺B对柑橘全爪螨雌成螨及其卵的触杀活性和驱避作用。结果表明,黄皮新肉桂酰胺B对柑橘全爪螨雌成螨及其卵具有较强的触杀活性,在10-500μg/m L浓度范围内,对柑橘全爪螨雌成螨处理24 h的LC50和LC90分别为62.92μg/m L和346.02μg/m L,其触杀毒力分别是鱼藤酮的3.7和5.4倍、印楝素的3.2和8.1倍;在100μg/m L时杀卵活性达到了42.9%,优于同浓度的鱼藤酮和印楝素;在100μg/m L和500μg/m L浓度下,处理36 h时对柑橘全爪螨的驱避率均大于80.0%,与同浓度的鱼藤酮和印楝素相当。表明黄皮新肉桂酰胺B对柑橘全爪螨具有较好的触杀、驱避作用,可作为杀螨活性的先导化合物。To explore the bioactivity of lansiumamide B against Panonychus citri,the dip-slide,leaf residue and leaf disc methods were applied to study the contact,repellent and ovicidal activities of lansiumamide B,respectively. The results showed that lansiumamide B at the concentration range of 10-500 μg / m L showed higher contact toxicity against female adults of P. citri. The LC50 and LC90values of lansiumamide B against the adults were 62. 92 μg / m L and 346. 02 μg / m L after 24 h treatment,respectively,and the toxicity of lansiumamide B were 3. 7 and 5. 4 times that of rotenone,3. 2 and 8. 1times that of azadirachtin, respectively. It also showed better ovicidal activity than rotenone and azadirachtin with a killing rate of 42. 9% on eggs at the concentration of 100 μg / m L. The repellent rate of lansiumamide B against the female adults were both over 80. 0% after 24 h treatment at 100 μg / m L and 500 μg / m L,which was equal to those of rotenone and azadirachtin. Lansiumamide B may be used as a lead compound of acaricidal activity for its excellent contact toxicity and repellency.

关 键 词：黄皮新肉桂酰胺B 生物活性 柑橘全爪螨 

分 类 号：S433.7[农业科学—农业昆虫与害虫防治]