Published in Scientific Papers. Series A. Agronomy, Vol. LXVI, Issue 1
Written by Natalia CÎRLIG, Elena IURCU-STRĂISTARU, Victor ȚÎȚEI, Serghei COZARI, Ana GUȚU, Alexandru TELEUȚĂ, Alexei BIVOL
A major risk for the species Reynoutria sachalinensis, as a non-traditional honey, fodder and bioenergy crop, in the Republic of Moldova, are the invasive diseases that affect the plants in the first growing season, once the assimilation organs are formed. It is an early-emerging species, subjected to the influence of stress factors, including diseases that affect the growth potential of plants. The research carried out in 2015-2022 by complex phytosanitary monitoring highlighted the spread of some pathogens that affect the plants of R. sachalinensis annually or periodically, being also favoured by environmental factors. We assessed the most significant diseases detected throughout the growing season, caused by pathogens such as: Peronospora fagopyri, Erysiphe communis f. polygoni, Septoria ascophylli, Ascochyta fagopyri, Phyllosticta polygonorum, Botrytis cinerea, Sclerotinia sclerotiorum, Fusarium gibossus, F. oxysporum f. sp. spinacia, Cucumis virus, Tabacco mosaic virus (TMV). A total of 11 diseases were recorded, 9 of which were of fungal origin and 2 of viral origin, causing various pathologies of etiological nature, of various frequency and significant intensity of damage caused to R. sachalinensis plants.
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