New vector of the potato virus X - Phytophthora infestans (Mont.) de Bary

Prove participation in the dissemination of the potato virus X zoospores of the fungus Phytophthora infestans. The minimum period for the acquisition virofornos was 12 hours of infection 72 hours after exposure to suspensions, zoospores at a donor within 24 hours, the efficiency of transmission increased. We found that the activity of transmission varies depending on the infected variety and soil temperature. And also influence of nitrates on growth and on number zoospores fungi Ph. infestans.