Diabetes affects our blood vessels and nerves and therefore can affect any part of the body. However, certain parts of our body are affected more than other parts.
I don't think dogwoods have (much?) scent, maybe just lightly floral. The white petally looking things are not actually petals they are bracts, like a poinsettia has. There's something called an English dogwood that is very fragrant, but it isn't a true dogwood and is also known as mock orange. Bradford pears have a smell that this author described as sweaty socks, so if your tree doesn't smell very good that's probably it: http://www.gardenguides.com/106133-dogw ...
Conditions. Dogwoods, though native to shady woodlands, are susceptible to fungus when planted in shade. Shade keeps leaves wet and protects dogwood fungi from the sun. Dogwoods, needing moist soil, are also vulnerable when allowed to suffer through drought without irrigation.ypes. The two most common dogwood diseases are powdery mildew and dogwood anthracnose. Powdery mildew appears as a gray powdery film on leaves. Rarely fatal, severe cases cause leaves to disfigure and drop.