RT Journal Article
SR Electronic
T1 Multiple Disease Resistance to Powdery Mildew, Bacterial Blight, and Alternaria Blight in Lilacs (<em>Syringa</em> Spp.).
JF Arboriculture &amp; Urban Forestry (AUF)
FD International Society of Arboriculture
SP 1
OP 9
DO 10.48044/jauf.2005.001
VO 31
IS 1
A1 Margaret T. Mmbaga
A1 Roger J. Sauvé
A1 Emmanuel Nnodu
A1 Suping Zhou
YR 2005
UL http://auf.isa-arbor.com/content/31/1/1.abstract
AB Fifty-six lilac accessions were evaluated in a 4-year study for resistance to powdery mildew caused by Microsphaera syringae, bacterial blight caused by Pseudomonas syringae pv. syringae, and Alternaria blight caused by Alternaria alternata. Accessions included 39 cultivars of Syringa vulgaris, four of S. prestoniae, three of S. hyacinthiflora, two of S. josiflexa, two of S. meyeri, two of S. reticulata, and one each of S. patula, S. chinensis, S. henryi, and S. microphylla. Of these, six accessions were resistant or moderately resistant to Alternaria blight and powdery mildew, four to bacterial blight and Alternaria blight, and 20 to powdery mildew and bacterial blight. Two cultivars of S. meyeri, ‘Dwarf Korean’ and ‘Palibin’, were resistant to all three pathogens. During this study, the most serious disease of lilacs in middle Tennessee, U.S., was Alternaria blight. It caused severe leaf scorching and defoliation that began in early July. Powdery mildew and bacterial blight caused mostly superficial damage with little effect on growth.