B. Dikova1*, H. Lambev2 1Department of Phytopathology, Plant Protection Division, Institute of Soil Science, Agrotechnologies and Plant protection N. Poushkarov, 7 Shosse Bankya, 1080 Sofia, Bulgaria 2Institute of Roses, Essential and Medical Plants, 49 Osvobozhdenie, 6100 Kazanlak, B
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