This study searched for biological and agricultural bases necessary in formulating suppressive measures of herbaseous mites occurring on perennial herbs in Korea. Of those tetranychids, the tea red spider mite(TRSM), Tetranychus kanzawai Kishida, mainly attacked the perennials and was believed to be of economic importance. Its annual abundances on 3 different herbs are presented and for Codonopsis lanceolata various injury levels in leaf are related to loss of chlorophyll and root yield. And of 4 species of predaceous phytoseiids identified from the field, Amblyseius makuwa and Amblyseius obtuserellus were quite common and regarded as possible density control agents for tetranychid mites. Together with a review on pest control measures conventionally practiced by the local farmers, several cultural and biological tactics are discussed to help formulate a safe and sound integrated management program against TRSM on perennial herbs.