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| 1 | 朱砂叶螨抗性品系不同温度下的相对适合度显示文摘为研究朱砂叶螨抗性品系不同温度下的适合度,在抗性选育基础上,通过组建朱砂叶螨相对敏感品系(S)、抗阿维菌素品系(AbR)和抗甲氰菊酯品系(FeR)在不同温度(15℃、20℃、25℃、28℃、31℃、34℃和36℃)下的生命表,比较相对敏感品系和抗性品系在不同温度下的发育历期、生殖力和内禀增长率等种群特征参数.结果表明:朱砂叶螨AbR和FeR品系的发育历期在15℃时较S品系明显延长,在20℃~28℃下生殖力较S品系有所下降;两个抗性品系的相对适合度(以rm值表示)在15℃时低于敏感品系,存在一定适合度代价,在20℃~31℃时,适合度与敏感品系相似,适合度代价不明显,但在高温下(≥34℃),FeR品系适合度代价明显,而AbR品系存在抗性适合度优势. | 何林 薛传华 赵志模 王进军 | 2008 | 应用生态学报2008，19，11： | 15 |
| 2 | 常见杀螨剂对朱砂叶螨生测方法和毒力的比较显示文摘通过对药膜法、玻片浸渍法、平板法、叶片浸渍法(分别用湿棉花、琼脂防逃)5种生测方法进行比较,并对4种杀螨剂进行室内毒力测定,以找出毒力测定的最佳方法,并了解朱砂叶螨[Tetranych—Uscinnabarinus(Boisduval)]对常见杀螨剂的抗药性。结果表明,5种生测方法的接虫时间接长短顺序表现为玻片浸渍法〉药膜法〉平板法〉叶片浸渍法(湿棉花防逃)〉叶片浸渍法(琼脂防逃)的规律,玻片浸渍法时间最长,为420-435s/30头;叶片浸渍法中用琼脂防逃时间最短,150-i65s/30头。4种药剂表现的毒力大小顺序为阿维菌素〉炔螨特〉联苯菊酯〉哒螨酮。由此可知,叶片浸渍法中用琼脂防逃为最理想的生测方法,而对于非叶片浸渍法,可优先选择药膜法,阿维菌素、炔螨特均表现出较高的毒力,而朱砂叶螨对联苯菊酯、哒螨酮均出现了不同程度的抗性。 | 付志能 朱秀 魏敬怀 杜晓英 | 2015 | 长江大学学报(自科版)(下旬)2015，12，1： | 1 |
| 3 | Joint Acaricidal Action of Diafenthiuron and Fenbutatin-oxide Against Tetranychus cinnabarinus(Boisduval)(Acari: Tetranychidae)显示文摘[Objective]This study was conducted to obtain a new high-efficiency acaricide mixture.[Method]The synergism acaricidal of diafenthiuron and fenbutatin-oxide against carmine spider mite was investigated,and the optimal ratio of both acaricides were determined by means of co-toxicity factors and co-toxicity coefficients(CTC).[Result]At 24 h post-treatment,the LC50values of diafenthiuron and fenbutatin-oxide against T.cinnabarinus female adults were 154.67 and 93.26 mg/L,respectively,and the synergistic mass ratios of diafenthiuron and fenbutatin-oxide ranged from 1:0.06 to 1:0.87,and the optimal diafenthiuron-to-fenbutatin-oxide ratio was 1:0.39 with the LC50and CTC of 67.87 mg/L and 188.93(CTC significantly above 100 strongly indicated synergism),respectively,and the toxicity relative to diafenthiuron and fenbutatin-oxide was 2.28 and 1.37 times,respectively.[Conclusion]The joint acaricidal action of diafenthiuron and fenbutatin-oxide strongly indicates synergism.These findings proved scientific theoretical basis for mixing diafenthiuron and fenbutatin-oxide to control spider mites and developing a new synergisic acaricide. | Zhenguo YANG Daoyan XIE Aisi DA Xiujun JIANG Jing NI Ping HUANG Jianping CHAI Yanjie LUO | 2014 | Agricultural Science & Technology2014，15，12： | 0 |
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