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Essential oils of Artemisia absinthium L. and Tanacetum vulgare L. were extracted by three methods, a microwave assisted process (MAP), distillation in water (DW) and direct steam distillation (DSD), and tested for their relative toxicity as contact acaricides to the two spotted spider mite, Tetranychus urticae Koch. All three extracts of A. absinthium and(More)
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