The effect of three essential oils of cumin, yarrow and wild carrots on the mature stage of dwarf turf, Tetranychus urticae Koch (Acari: Tetranychidae)

آدینه, سحر and اصغر فتحی, سید علی and صالحی, فهیمه and رحیمی, عباس The effect of three essential oils of cumin, yarrow and wild carrots on the mature stage of dwarf turf, Tetranychus urticae Koch (Acari: Tetranychidae). In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

Tetranychus utricae Koch is of great importance because of its wide dissemination, wide range of hosts, severe damage, high population growth and the ability to create resistance to pesticides. Herbal Essences are complex compounds that, in addition to fecundity, nutritional suppression and egg suppression, can be considered as fungible chemical stimuli for pests. In this research, the effects of carrot essential oils, carum carvit, yarrow, Achillea millefolium and wild carrot, Dacus carota on the adult maturity stage at 26 ± 2 ° C and 40 ± 5% RH and the light period to Darkness 16: 8 was investigated. Essential oil was extracted by water distillation and with Clevenger. The main concentrations of the test for essential oil of cumin were 0.16, 0.33, 0.66, 1.33, 2.66 and 5.333 μl / l, for the essential oil of yarrow, 33/0, 66/0, 33 / 1, 66/2, 33/5, 10/66 and 21/24 microliter per liter of air and carrot essential oil, 33/3, 66/6, 13/33, 66/26, 33/53 and 66/106 The microliter per liter of air. The LC50 values for cumin, yarrow and wild carrot were 88.8, 3.6 and 27.2 μl / liter, respectively. The results indicated that the essential oil of Cumin had an effect on the adult maturity of the whitish turtlenecks at a lower concentration than the yarrow's essential oil and wild carrot. Also, based on the results of analysis of variance and comparison of the average of the effect of mites, the essential oils increased with increasing concentrations.

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