Pseudomonas syringae pv. syringae is an opportunistic bacterial pathogen that attacks a diversity of woody ornamental plants. The bacteria cause flower blights, cankers, shoot blights, and diebacks. Symptoms Symptoms often begin as expanding leaf spots. On lilac and viburnum, small spots expand to irregularly shaped brown lesions with yellow halos (Fig. 1). For most other hosts[Read More…]
Resources for landscapes and gardens in the Midwest
Landscape Report
It’s that wonderful time of year again where temps are rising, life is coming back into the landscape, and people are thinking about how to improve the urban canopy around them. Well, maybe not that specifically, but we have the urge to plant trees. Whether it’s for Earth Day or Arbor Day or you just[Read More…]
It’s time for spring cleaning the herbaceous perennial garden, but be careful not to pluck out any of your favorite flowers. With all the green quickly sprouting up, it may be difficult to tell friend from foe. Established herbaceous perennials will emerge from the ground in the same location as the previous year and are[Read More…]
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