B. Dikova1*, H. Lambev2
1Institute for Soil Science, Agrotechnologies and Plant Protection Nikola Poushkarov, 7 Shosse Bankya, 1080 Sofia, Bulgaria 2Institute of Roses, Essential and Medical Cultures, 49 Osvobozhdenie, 6100 Kazanlak, Bulgaria
Abstract. The objective of the study was the establishment of the seasonal dynamics of some wide spread infectious diseases, caused from virus pathogens on the most important for Bulgaria essential oil-bearing culture coriander – Coriandrum sativum (L.), that was a premise for determination of dates and means for the control of these pathogens. The researches for the establishment of viral infection in coriander were carried out by the serological method ELISA (Enzyme linked immunosorbent assay), variant DAS-ELISA in the Division for Plant Protection to the Institute of Soil Science, Agrotechnologies and Plant Protection (ISSAPP) Nikola Poushkarov, Sofia, Bulgaria. The observations for the establishment of aphids in coriander crop were carried out in the Institute of Roses, Essential and Medical cultures (IREMC) near Kasanlak, Bulgaria. A rise of the infection, expressing by the increase of the viral concentration in the summer in comparison with the spring was established for the following pathological for coriander viruses: Alfalfa mosaic virus (AMV) and Cucumber mosaic virus (CMV). The number of populations of aphids (carriers – vectors) of AMV and CMV as well as the coriander plants with symptoms of viruses increased in the summer in comparison with the spring. The established dependences will be taken into consideration in the cases of the integrated management of pests on coriander.