Iris

Iris: Leaf spot

Iris: Leaf spot categories: Bulbs Iris Iris Diseases Ornamentals revision date: 2023-02-09 12:00 Iris leaf spotPhoto by: R.S. Byther Biology Leaf spot is caused by a fungus which overwinters on dead leaves and other plant material. Spores develop in spring and infect leaves. Several cycles can occur in warm, wet weather, and the disease thrives […]

Iris: Bulb mite

Iris: Bulb mite categories: Bulbs Iris Iris Insects Ornamentals revision date: 2023-02-07 12:00 Iris bulb mitesPhoto by: A.L. Antonelli Biology Bulb mites are a typical pest of iris in Washington both in the gardens and in storage. Injured or bruised bulbs are the most susceptible to damage. Not only do mites destroy bulb tissue, but […]