Psyche: A Journal of Entomology / 2012 / Article / Tab 1

Research Article

Investigations on the Effects of Five Different Plant Extracts on the Two-Spotted Mite Tetranychus urticae Koch (Arachnida: Tetranychidae)

Table 1

Effect (mean ± SE) and mortality (%) of extracts obtained from different five plants on T. urticae.


Treatment
Leaf-dipping methodLeaf-spraying method
LarvaeAdultAdult
Concentration (%)Mortality (%)Effect (%)Mortality (%)Effect (%)Mortality (%)Effect (%)

H. arenarium1 46 31.59 ± 4.00c37 25.32 ± 4.10c52 39.76 ± 5.18c
3 53 41.59 ± 5.47bc47 37.22 ± 6.77bc66 59.88 ± 4.65b
6 58 46.09 ± 2.53b51 42.36 ± 5.61b76 71.82 ± 1.76ab
127162.72 ± 2.28a6456.85 ± 5.63a8582.38 ± 1.92a

A. sativum1 46 31.30 ± 5.01b29 16.43 ± 2.43b66 59.76 ± 4.45b
3 50 37.80 ± 5.96b34 27.59 ± 5.17ab69 65.45 ± 5.16ab
6 56 43.37 ± 5.95b45 34.35 ± 6.76a77 72.79 ± 4.38a
126858.35 ± 6.31a4939.49 ± 5.07a7873.92 ± 3.16a

V. album1 50 35.83 ± 4.33c51 29.07 ± 4.71c47 33.57 ± 4.12c
3 65 54.93 ± 5.22b61 42.41 ± 6.33b59 49.72 ± 3.39b
6 75 65.37 ± 3.15ab78 51.57 ± 5.37a70 62.58 ± 2.98b
127770.55 ± 2.44a7979.02 ± 3.76a8175.77 ± 3.81a

T. parthenium1 49 38.22 ± 5.83c64 54.49 ± 4.34c47 33.61 ± 4.14c
3 64 54.06 ± 3.14b77 69.58 ± 1.52b60 49.75 ± 3.41b
6 75 67.89 ± 2.56a85 82.41 ± 1.94a71 62.62 ± 2.96b
128276.54 ± 3.51a8883.47 ± 1.95a8175.68 ± 3.77a

R. luteum1 44 31.87 ± 3.31b27 31.66 ± 4.50b37 25.81 ± 2.94c
3 48 35.38 ± 4.05b44 34.02 ± 3.62b42 43.23 ± 3.40b
6 74 66.14 ± 4.50a53 44.35 ± 4.43b58 50.31 ± 3.28ab
128175.62 ± 3.03a6763.66 ± 2.44a6861.97 ± 3.75a

Control220150150

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