2.
工程菌Cyt2Ba-BL21干粉配剂对白纹伊蚊II龄幼虫的杀灭作用
Larvicidal activity of formulations of Cyt2Ba-BL21 to the 2nd instar larvae of Aedes albopictus
| Formulations (10 mg) | Mortality (%) | |
| 24 h | 48 h | |
| The dry powder of Cyt2Ba-BL21 formulated with yeast extract, wheat flour or white pepper powder at the mass ratio of 1:1 showed the strongest killing effect on mosquito larvae (P < 0.05), and the formulation with white pepper powder produced a stronger killing effect than formulations with yeast extract or wheat flour (P < 0.05). | ||
| Cyt2Ba-BL21 dry powder (CB) | 40 | 80 |
| Yeast extract (YE) | 10 | 20 |
| CB：YE=4：1 | 35 | 70 |
| CB：YE=1：1 | 50 | 90 |
| CB：YE=1：4 | 40 | 65 |
| Wheat flour (WF) | 15 | 15 |
| CB：WF=4：1 | 40 | 65 |
| CB：WF=1：1 | 55 | 85 |
| CB：WF=1：4 | 30 | 50 |
| White pepper powder (WP) | 25 | 45 |
| CB：WP=4：1 | 60 | 100 |
| CB：WP=1：1 | 80 | 100 |
| CB：WP=1：4 | 70 | 95 |
| Sterile water | 0 | 0 |