Muscadine vine dieback: emerging problem and possible control measures

Zhong Bo Ren, Jiang Lu

Abstract


Increasing numbers of muscadine dieback incidents have been found in north Florida and south Georgia vineyards in recent years. Symptoms such as dying of new shoots (one or both arms), or entire vines were observed. A case survey in a north Florida commercial vineyard with five cultivars indicated that the disease is a new threat to muscadine grapes (Vitis routondifolia Michx or Vitis routondifolia Small). Up to 100% of vine infection that resulted in 17% mortality, was observed in some important cultivars. The possible treatments for preventing this disease are discussed.

Keywords


vitis routondifolia; shoots; leaves; infection; vine survival

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Proc. Fla. State Hort. Soc.     ISSN 0886-7283