Plant Disease (2001) 85, p. 560 (Sinclair et al.)

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W.A. Sinclair, A.M. Townsend and J.L. Sherald (2001)
Elm yellows phytoplasma lethal to Dutch elm disease-resistant Ulmus americana cultivars
Plant Disease 85 (5), 560-560
Abstract: Four Ulmus americana (American elm) cultivars know to be resistant against Ophiostoma novo-ulmi, were also screened for resistance to the elm yellows phytoplasma. Saplings planted in New York, USA were inoculated. The inoculation results varied from 3 of 13 to 9 of 9 infections among the 4 cultivars and did not produce evidence for the existence of resistance.
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Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Phytoplasma ulmi Elm (Ulmus) U.S.A. (NE)