3.2. Disinfection of TMV on scissors
The disease ratio and disease index in the treatments in which
scissors were treated with 100-fold dilution CZ were 3.70% and
0.41%, respectively, significantly lower (P < 0.01) than that of the
nutrient broth medium, water treatments and the non-treated
control (Table 3). Nutrient broth medium and water treatments
showed lower disease severity than the non-treated control,
probably due to the dilution of TMV suspension in the process of
dipping. The disinfection of TMV on scissors confirmed the effect of
“in vitro suppression” and suggested that CZ could be used as a TMV
disinfector on instruments and soils in tobacco seedbeds.