Plants wilt and die as the browning spreads up the leaf blade. On older plants, flower stalks are short and wilted. Lack of boron Apply boron. Botrytis Blight Small water-soaked lesions form on damaged petioles and spread to leaf blades.
Infected flowers fade prematurely.
Botrytis cinerea Space plants and provide ventilation to avoid high humidity. Remove fading flowers and yellowing leaves. Apply chlorothalonil or iprodione to protect healthy tissue. Foliar Nematode Small tan, sunken areas form on leaf tips and margins. Spots become dry and dull black.