Laboratory testing for grapevine diseases First Paragraph: Laboratory testing for grapevine diseases is useful for diagnosing problems in existing vineyards. Identifying infected propagation can help growers avoid spreading diseases to new vineyards. Weber_Diseasetesting_2002.pdf File Size0.7 MiB DateJune 25, 2013 Downloads855 AuthorEd Weber, Deborah Golino, Adib Rowhani