Zone de Texte: S. elaeagnifolium host of PVYNTN in 3 seed potato regions and during susceptible period of potato crop. 32% of collected S. elaeagnifolium have positive reaction in ELISA test S. elaeagnifolium support two aphid vectors Zone de Texte: S. elaeagnifolium supplementary source for PVY spread in potato fields under natural conditions Zone de Texte: S. elaeagnifolium has to be eradicated around the fields of seed potatoes Zone de Texte: TO RECAPITULATE

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