Early prevention and control of autumn tomato virus disease gives good results
Virus disease: In the early stage of the disease, spray with a 500-fold dilution of 20% Virus A wettable powder, or a 1000-fold dilution of potassium permanganate, once every 7 days, for 2 to 3 consecutive sprays.
Virus disease: In the early stage of the disease, spray with a 500-fold dilution of 20% Virus A wettable powder, or a 1000-fold dilution of potassium permanganate, once every 7 days, for 2 to 3 consecutive sprays.