EN
Studies were carried out on the efficiency of spray application of two common fungicides on the infection of tobacco (Nicotiana tabacum cv. Xanthi nc.) with the tomato mosaic virus (ToMV) applied by mechanical inoculation. Out of two tested fungicides only Curzate was able to reduce effectively virus infectivity (by ca 57%), when applied 4 hours before inoculation with ToMV. The effect of inhibition decreased with time elapsing between the moments of fungicide treatment and virus inoculation. Both fungicides did not influence infectivity when mixed with the virus in vitro.