Blue Spruce & Needle Cast

One of the most glaring home landscape issues in the Midwest is the prevalence of declining and dead Colorado Blue Spruce (Picea pungens). The causal agent of the disease (needle cast) is several species of a fungus (Rhizosphaera)--other species, especially White Spruce (P. glauca), Oriental Spruce (P. orientalis), also are susceptible. The characteristic needle death and loss will start at the bottom, within the canopy, on the north as well as any shaded portions. There was a time, now long gone, when these spruce did not present this condition here. Unfortunately, now, the disease is inevitable even if effort is made to suppress the disease with multiple and well-timed (spring) sprayin

Rant of the Month

Unfortunately, most people know little about gardening and environmental issues including many "professionals" employed to choose, install and maintain plants and design landscapes. This page highlights specific issues with commentary on remedy or recommendation for course of action. Examples are numerous and easy to find -- rarely requiring me to travel far from home.  Hopefully, these postings will make the task of finding examples more difficult.  I will occasionally also post outstanding and approved examples in an effort to educate.

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