Table 2.
Larvicidal effect of GCA derivatives of 2nd instar mosquito larvae
Name | Ae. aegypti mortality |
An. stephensi mortality |
Statisticsc | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Mean | SEM | Statisticsa | LC50d | Mean | SEM | Statisticsb | LC50d | |||
DMSO | control | 0.0 | 0.0 | – | 0.0 | 0.0 | – | ns | ||
GCA-1 | Ent 1 | 4.7 | 2.6 | ns | 0.0 | 0.0 | ns | ns | ||
GCA-2 | Ent 2 | 18.1 | 4.0 | ** | 83.4 | 2.8 | *** | *** | ||
GCA-3 | Diasteromer | 1.5 | 1.5 | ns | 0.0 | 0.0 | ns | ns | ||
GCA-4 | Hydrogenated | 12.3 | 2.6 | ns | 57.5 | 8.1 | *** | *** | ||
GCA-5 | N-Methyl | 96.2 | 1.9 | *** | 0.1 | 100.0 | 0.0 | *** | 0.1 | ns |
GCA-6 | N-Acyl | 1.7 | 1.7 | ns | 0.0 | 0.0 | ns | ns | ||
GCA-7 | de-2-F-GCA | 0.0 | 0.0 | ns | 0.0 | 0.0 | ns | ns | ||
GCA-8 | de-Pyridyl-GCA | 0.0 | 0.0 | ns | 0.0 | 0.0 | ns | ns | ||
GCA-9 | de-4-F-GCA | 91.4 | 7.0 | *** | 0.2 | 100.0 | 0.0 | *** | 0.2 | ns |
GCA-10 | thiazole-GCA | 0.0 | 0.0 | ns | 37.6 | 2.1 | *** | ** | ||
GCA-11 | tBu-GCA | 15.4 | 4.4 | * | 86.4 | 9.7 | *** | *** | ||
GCA-12 | 2-Pyridyl-GCA | 100.0 | 0.0 | *** | 0.1 | 100.0 | 0.0 | *** | 0.1 | ns |
GCA-13 | 4-CF3-GCA | 5.3 | 5.3 | ns | 0.0 | 0.0 | ns | ns | ||
GCA-14 | GCA-ArCN | 0.0 | 0.0 | ns | 0.0 | 0.0 | ns | ns | ||
GCA-15 | GCA-ArBnNHAc | 0.0 | 0.0 | ns | 0.0 | 0.0 | ns | ns | ||
GCA-16 | GCA-ArBnAm | 91.7 | 1.7 | *** | 0.2 | 81.7 | 4.6 | *** | 0.1 | ns |
GCA-17 | GCA-ArCF3 | 5.9 | 5.9 | ns | 0.0 | 0.0 | ns | ns | ||
GCA-18 | GCA-ArAmPip | 100.0 | 0.0 | *** | 0.05 | 100.0 | 0.0 | *** | 0.05 | ns |
GCA-19 | GCA-ArAmHept | 0.0 | 0.0 | ns | 0.0 | 0.0 | ns | ns | ||
GCA-20 | GCA-ArAmNapth | 0.0 | 0.0 | ns | 0.0 | 0.0 | ns | ns | ||
GCA-21 | GCA-ArAmArCF3 | 0.0 | 0.0 | ns | 0.0 | 0.0 | ns | ns |
Statistical significane levels are shown as ns: not significant,
P<0.05,
P<0.01,
P<0.001.
Statistical comparison between DMSO and GCA derivatives in Ae. aegypti.
Statistical comparison between DMSO and GCA derivatives in An. stephensi.
Statistical comparison between Ae. aegypti and An. stephensi for each GCA derivative.
LC50 (50% the lethal concentration in mM) was determined in Ae. aegypti and An. stephensi.