Ann writes
Yes, Honor Guard PPZ Fungicide with 14.3% Propiconazole is labeled to treat rust, and can be used on daylillies. You would apply 0.16 fl oz per gallon of water, and apply as a full coverage spray to the point of drip. Apply every 14-28 days beginning when conditions are favorable for disease development.
Answer last updated on: 09/29/2017