iris foliage diseases

Asked September 24, 2016, 2:55 PM EDT

Are there any ways to control the foliage diseases that constantly attack my irises ? I can completely clean up the bed and cut off the diseased foliage and within a couple of weeks it will be looking ragged again. I have tried a systemic fungicide that helped only a little. One grower advised me to learn to live with it !

Washington County Oregon

1 Response

Thanks for your iris question. I'm not sure what foliage problems you have, and irises (especially bearded irises) can have many causes of plant problems. Sometimes, it appears to be a foliage issue, but the problem is really at the root level. This is a very thorough article about 4 diseases that plague these plants. You'll have to check the rhizomes to see of that's where the damage is really starting.

Good luck!