Psyche: A Journal of Entomology / 2012 / Article / Tab 2

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. arenariumA. sativum V. album T. parthenium R. luteum
Number of eggs (mean ± SE)

Control162.5 ± 11.80c162.5 ± 11.80c162.5 ± 11.80c162.5 ± 11.80162.5 ± 11.80c
1145.5 ± 5.91c184.0 ± 12.10b152.6 ± 10.50c158.0 ± 12.1b152.6 ± 10.50c
394.5 ± 6.0b154.3 ± 10.3b137.6 ± 13.43c153.3 ± 10.3b137.6 ± 13.40c
681.8 ± 6.40b115.2 ± 9.13a108.9 ± 19.9b136.2 ± 9.12b88.9 ± 19.92b
1262.5 ± 6.33ab98.2 ± 8.60a96.4 ± 2.52b87.2 ± 8.60a18.4 ± 2.50a

Within columns, means ± SE followed by the same letter are not significantly different (DUNCAN’s multiple F-test ).