| Autor: |
YANG, Zhenguo, XIE, Daoyan, DA, Aisi, JIANG, Xiujun, NI, Jing, HUANG, Ping, CHAI, Jianping, LUO, Yanjie |
| Předmět: |
|
| Zdroj: |
Agricultural Science & Technology; Dec2014, Vol. 15 Issue 12, p2159-2248, 6p |
| Abstrakt: |
[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 LC50 values 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 LC50 and 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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
