Red leaf spot,root rot and root-knot nematode were the main pests of Paeonia suffruticosa occurred prevalently in Paeonia suffruticosa cultivation area in Heze county of Shandong province.

• 红斑病、根腐病、根结线虫病是牡丹的主要病害,在山东菏泽牡丹栽培区普遍发生且危害严重,已影响到牡丹产业化的发展。