Table 3 Mortality of artificial diet- and corn leaf-fed Spodoptera frugiperda larvae. Forty larvae were used to start each treatment
Larval development stage | Mortality (%) (Means ± SE) | |||||
|---|---|---|---|---|---|---|
Artificial diet | Corn leaves | |||||
TM2019 | KC2022 | WS2022 | TM2019 | KC2022 | WS2022 | |
1st instar | 32.50 ± 0.25 | 30.00 ± 0.41 | 27.50 ± 0.25 | 10.00 ± 0.41 | 12.50 ± 0.25 | 15.00 ± 0.29 |
2nd instar | 10.00 ± 0.00 | 7.50 ± 0.25 | 5.00 ± 0.29 | 5.00 ± 0.29 | 7.50 ± 0.48 | 5.00 ± 0.29 |
3rd instar | 2.50 ± 0.25 | 0 | 2.50 ± 0.25 | 0 | 2.50 ± 0.25 | 0 |
4th instar | 0 | 0 | 0 | 0 | 0 | 0 |
5th instar | 0 | 0 | 0 | 0 | 0 | 0 |
6th instar | 0 | 0 | 0 | 0 | 0 | 0 |