the two spotted spider mite tetranychus urticae koch is one of the polyphagous pests of crops worldwide. due to undesirable effects of synthetic pesticides such as expression of resistance in mites, this research was conducted to achieve alternative safe compounds to environment. therefore, ovicidal activity of essential oils of eucalyptus salmonophloia f. muell and eucalyptus kingsmillii maide...

The two-spotted spider mite Tetranychus urticae is a damaging pest worldwide with a wide range of host plants and an extreme record of pesticide resistance. Recently, the complete T. urticae genome has been published and showed a proliferation of gene families associated with digestion and detoxification of plant secondary compounds which supports its polyphagous behaviour. To overcome spider m...

The two-spotted spider mite Tetranychus urticae is one of the most polyphagous and damaging pests worldwide. behaviour differs on its various host plants this could influence crop defence strategies. We investigated perception leaf morphology by T. in relation to effects visible light selection sites which females prefer live feed. Mite chose shaded surface when smooth glabrous lemon leaves wer...

The two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) is a cosmopolitan pest that causes considerable damage to vegetables, fruit and flower plants. acaricidal, ovicidal repellent activity of four different extracts Aloe vera L. (Asphodelaceae) leaves were evaluated against T. under laboratory conditions. Four solvents A. leaf tested at concentrations 0.25, 0.50, 1.0 2.0%...

Abstract Background The two-spotted spider mite, Tetranychus urticae Koch (Trombidiformes: Tetranychidae), is one of the most damaging mites in agriculture. Due to concern for intensive use synthetic acaricides, entomopathogenic fungi represents a feasible alternative T. management. In present study, 7 isolates Metarhizium were characterized physiological and molecularly (based on ITS1-5.8s-ITS...

BACKGROUND The two-spotted mite, Tetranychus urticae Koch, is one of the most serious mite pests of crops throughout the world. Biocontrol of the mite with fungal agents has long been paid much attention because of the development of insecticide resistance and the severe restriction of chemical pesticides. In this study, the efficacy of submerged conidia of the entomopathogenic fungus Isaria ca...

*Correspondence: Peter Schausberger, Group of Arthropod Ecology and Behavior, Division of Plant Protection, Department of Crop Sciences, University of Natural Resources and Life Sciences, Vienna, Peter Jordanstrasse 82, 1190 Vienna, Austria e-mail: peter.schausberger@boku. ac.at Predation is a prime selective force shaping prey behavior. Investment in anti-predator behavior is traded-off agains...

The use of a standardized beat sampling method for estimating spruce spider mite, Oligonychus ununguis (Jacobi) (Acari: Tetranychidae), densities on a widely used evergreen ornamental plant species, Juniperus chinensis variety 'Sargentii' A. Henry (Cupressaceae), was examined. There was a significant positive relationship between total spruce spider mite densities and spider mite densities from...

almond spider mite was recently out broken in saman orchards, chaharmahal va bakhtiari province. applying of pesticides to control of the pest increase production cost, environmental pollution, frequency of pesticide resistance and kill natural enemies. the effectiveness of some acaricides on control of the mite was studied in the lab and field conditions. four acaricides including: bromopropyl...