Research Article
Investigations on the Effects of Five Different Plant Extracts on the Two-Spotted Mite Tetranychus urticae Koch (Arachnida: Tetranychidae)
Table 2
Effect of extracts from obteined different five plants on egg laying capacity of T. urticae.
| Concentrations (%) | Treatment | H. arenarium | A. sativum | V. album | T. parthenium | R. luteum | Number of eggs (mean ± SE) |
| Control | 162.5 ± 11.80c | 162.5 ± 11.80c | 162.5 ± 11.80c | 162.5 ± 11.80 | 162.5 ± 11.80c | 1 | 145.5 ± 5.91c | 184.0 ± 12.10b | 152.6 ± 10.50c | 158.0 ± 12.1b | 152.6 ± 10.50c | 3 | 94.5 ± 6.0b | 154.3 ± 10.3b | 137.6 ± 13.43c | 153.3 ± 10.3b | 137.6 ± 13.40c | 6 | 81.8 ± 6.40b | 115.2 ± 9.13a | 108.9 ± 19.9b | 136.2 ± 9.12b | 88.9 ± 19.92b | 12 | 62.5 ± 6.33ab | 98.2 ± 8.60a | 96.4 ± 2.52b | 87.2 ± 8.60a | 18.4 ± 2.50a |
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Within columns, means ± SE followed by the same letter are not significantly different (DUNCAN’s multiple F-test ).
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