Skip to main content
ARS Home » Southeast Area » Poplarville, Mississippi » Southern Horticultural Research Unit » Research » Publications at this Location » Publication #213395
Title: Resistance to Powdery Mildew in Hydrangeas

Author
item LI, YONGHAO - UNIV OF TENNESSEE
item WINDHAM, MARK - UNIV OF TENNESSEE
item TRIGIANO, ROBERT - UNIV OF TENNESSEE
item WINDHAM, ALAN - UNIV OF TENNESSEE
item Reed, Sandra
item MMBAGA, MARGARET - TENNESSEE STATE UNIV
item Spiers, James
item Rinehart, Timothy - Tim

Submitted to: Southern Nursery Association Research Conference
Publication Type: Proceedings
Publication Acceptance Date: 8/9/2007
Publication Date: 8/9/2007
Citation: Li, Y., Windham, M., Trigiano, R.N., Windham, A.S., Reed, S.M., Mmbaga, M.T., Spiers, J.M., Rinehart, T.A. 2007. Resistance to Powdery Mildew in Hydrangeas. Southern Nursery Association Research Conference vol. 52, pp 304-305.

Interpretive Summary: Powdery mildew is an important foliar disease of hydrangeas. For developing efficient integrated disease management strategies involving the utilization of resistant cultivars, it is essential to understand how the powdery mildew fungus infects hydrangea plants and how the host resists the parasitism by the fungus. This paper describes the infection process of Erysiphe polygoni and investigated the effects of hydrangea susceptibility to powdery mildew development using a leaf disk assay. Results of these experiments could be used to develop laboratory screening methods for evaluating hydrangea resistance to powdery mildew.

Technical Abstract: Powdery mildew is an important foliar disease of hydrangeas. For developing efficient integrated disease management strategies involving the utilization of resistant cultivars, it is essential to understand how the powdery mildew fungus infects hydrangea plants and how the host resists the parasitism by the fungus. This paper describes the infection process of Erysiphe polygoni and investigated the effects of hydrangea susceptibility to powdery mildew development using a leaf disk assay. Results of these experiments could be used to develop laboratory screening methods for evaluating hydrangea resistance to powdery mildew.