this is a tomato plant , oksana dobrovolskaya, deputy director for science of the institute, plant quarantine of the rosselkhoznadzor, says. what requirements should the received pants meet. they must have a number of properties to be vaccines. they should easily infect plants and cause systemic infection. they must be weakened. they should not cause symptoms. ahead of this drug is still testing and registration, according to oksana dobrovolskaya, this is a vaccine. it is simply necessary for the farmer. it's a mosaic virus. pipina has a high degree of contagiousness. this virus is spreading quite fast. it is transmitted mechanically and one plant of one plant is enough. in order to infect the entire greenhouse complex, being infected, we can no longer cure it by some means, for example, e-e preparations containing chemical agents, and as it simply does not exist, there are also no varieties resistant to this virus, because resistance genes to it have not been found at the moment with oksana dobrovolskaya, he runs a holding that grows tomatoes and cucumbers on 105 hectares from here deliver 70,000 tons of vegetables