Table 2.
Toxic ranges of Cylindrospermum sp. due to selected insecticides in liquid and solid media (ppm)a.
| Liquid cultures | Agar media | |||||||
|---|---|---|---|---|---|---|---|---|
| Partial lethal range | ||||||||
| Insecticides | Medium type | Growth enhancing conc. | NOEC | MIC | HPC | LC100 | HPC | LC100 |
| Carbaryl | C-N | NO | 10 | 20 | 80 | 100 | 80 | 100 |
| C+N | NO | 10 | 20 | 100 | 120 | 80 | 100 | |
| Carbofuran | C-N | 25 | 50 | 100 | 1500 | 2000 | 500 | 600 |
| C+N | 25 | 50 | 100 | 2000 | 3000 | 500 | 600 | |
a
NO = no growth enhancing dose was observed in standard inoculums at or below 3.5×104 cells per mL. NOEC = no-observed effective concentration. MIC = minimum inhibitory concentration. HPC = highest permissive concentration. LC100 = lethal concentration 100.