biological reactions of the two-spotted spider mite (tss), tetranychus urticae, were studied on nine cultivars of tomatoes. the spider mites were reared on leaf discs, taken from fruiting stages of the host plants. the effects of feeding on some tomato cultivars, namely: long shelf life, meran (greenhouse cultivars), redclude, western red, imperial, yazd, mazandaran, west azarbaijan and khorasa...

Remote sensing techniques can decrease pest monitoring costs in orchards. To evaluate the feasibility of detecting spider mite damage in orchards, we measured visible and near infrared reflectance of 1153 leaves and 392 canopies in 11 peach orchards in California. Pairs of significant wavelengths, identified by Partial Least Squares regression, were combined into normalized difference indices. ...

a comparative study was made between the acaricidal activities of some essential oils: rosemary (rosmarinus officinalis l.), lavandula (lavandula angustifolia mill.), thyme (thymus vulgaris l.) and ziziphora (ziziphora clinopodioides lam.) on the important mite pest, tetranychus cinnabarinus boisduval, the carmine spider mite, oncut roses during 2010-2012. the sublethal concentrations of ziziph...

the two-spotted spider mite, tetranychus urticae koch (acari: tetranychidae) is one of the most important agricultural pests of the world. it causes direct and indirect damage on plants which decreases in photosynthesis and crop yield. the effect of sublethal concentrations of artemisia annua l. (asteraceae) and rosmarinus officinalis l. (lamiaceae) essential oils were assessed on development a...

The spider mite, Tetranychus truncatus, is a polyphagous agricultural pest harboring various endosymbionts, such as Wolbachia and Spiroplasma. How they interact with each other in the same host not clear. temperature impacts their interaction endosymbionts remains largely unknown. Furthermore, little known about bacterial communities of truncatus molecular mechanism underlying regulation genes....

the two-spotted spider mite, tetranychus urticae koch, is a polyphagus pest which infests wide range of field, garden and greenhouse crops worldwide. pesticide applications against this pest have caused development of resistance, undesirable effects on non target organisms and environment and secondary pest outbreak. in recent years, herbal essential oils have received attention as natural plan...