Research Progress on Cucumber Target Leaf Spot(Corynespora cassiicola)

Cucumber target leaf spot,caused by Corynespora cassiicola(Berk Curt)Wei.,have resulted in an increasing losses in cucumber production recently.Phylogenetic diversity,pathogenous law methods of evaluating cucumber resistant to target leaf spot,resistant cucumber germplasm and their controlling methods are discussed systematically in this paper.Considering problems existing in current research,advices and suggestions are provided and future research orientation is prospected.