Table 2.
Mean number of eggs oviposited by Plutella xylostella in the choice bioassays and the oviposition deterrent index (ODI) based on the use of aqueous and ethanolic extracts of Ludwigia spp.
| Treatment | Number of Eggs ± SE | p-Value | ODI % | Classification |
|---|---|---|---|---|
| AQUEOUS EXTRACT | ||||
| Choice Bioassay | ||||
| Control | 49.40 ± 17.07 a | 0.0335 | - - | |
| L. tomentosa | 4.30 ± 2.02 b | 70.69 | Deterrent | |
| L. longifolia | 1.40 ± 0.65 b | 76.42 | Deterrent | |
| L. sericea | 9.20 ± 3.74 b | 61.23 | Deterrent | |
| L. nervosa | 6.00 ± 2.85 b | 66.88 | Deterrent | |
| ETHANOLIC EXTRACT | ||||
| Choice Bioassay | ||||
| Control | 64.70 ± 14.56 a | 0.0182 | - - | |
| L. tomentosa | 14.90 ± 6.33 b | 60.02 | Deterrent | |
| L. longifolia | 5.70 ± 1.96 b | 73.70 | Deterrent | |
| L. sericea | 15.8 ± 5.80 b | 49.64 | Deterrent | |
| L. nervosa | 12.1 ± 4.90 b | 41.73 | Deterrent | |
Means followed by different letters in the column differ at a 5% significance level. SE—standard error; ODI—oviposition deterrent index.