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Abstract
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Rosaspp., belongs to Rosaceae family, is one of the most popular and beautiful ornamental flowers throughout the world. Being perennial, long flowering period, variety of cultivars are features thathas made this plant adorn houses, gardens, and urban green spaces. The cultivars of these cosmopolite plants are cultivated across the country. Tetranychus urticae(Tetranychidae) are main arthropoda that both directly and indirectly damage these plants. These mites are spinneret; they hide under the fibers, and work. Mites suck the sap of plants with their acerose styleteswhich causes the appearance of white small spots on the leaf surface. Then they gradually become brown. Also, severely infected leaves are wrapped up. Spider mite can discharge 100 cells per minute and they have no role inmetabolism anymore.Since mites webs are covered in dust, the infected plants are always dusty. In the study of rose pro-stigmata mite fauna, carried out in foursitesofHamedan province during2012-2013, shaking method and Berlese funnel were used to extract the specimens. It was found,there is significant difference between number of mites in the summerthan inspring andautumn (f= 4.243, P-value=0.007).Therefore, in the beginning of season, it is better to use predatorymitesto reduce the number of mites including spider mites. Besides, sprinkle irrigation with enough strong pressure and uniform injection makes the conditions for the mites unfavorable, reduces the amount of dust on the rose surface, and finally minimizes the need for chemical control
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