Effect of biostimulant sprays on Phaeomoniella chlamydospora and esca proper infected vines under greenhouse and fi eld conditions

摘要: Summary. Biostimulants are compounds that infl uence physiological processes in plants, producing better growth and enhancing stress tolerance. The effect of some biostimulants on vines was investigated over a number years to assess their both the incidence esca leaf symptoms vineyard Phaeomoniella chlamydospora artifi cially inoculated into potted vines. Field trials were carried out for 4 –7 fi ve 15 – 20-yearold vineyards infected with proper. Potted plants sprayed biostimulants, after which vine trunks P. chlamydospora, then again following 2 or 3 growing seasons. On whole, eld did not reduce foliar symptoms. percentage symptomatic had shown previous higher biostimulant-sprayed plots. In greenhouse, certain reduction internal necrosis caused by seen three four tested. Prospects as means control discussed.