How to Control Black Spot Fungus Disease on Roses. The signs of black spot fungus on roses are hard to miss. Black spot (blackspot) is one of the most common diseases of rose bushes; and, if left unchecked, it can cause quite a bit of damage to your rose garden. Caused by the fungus Diplocarpon rosae, black spot begins just as its name suggests, with black spots showing up on the surface of the leaves.
1 Swallowing disorders (may result in actual post-nasal drip or just cause the sensation of having it) 2  Strep throat (post-nasal drip is an uncommon strep throat symptom, but it can occur)  Pregnancy and other conditions that cause fluctuation of hormone levels.
When sinusitis causes postnasal drip, an infection of the sinuses results in the development and discharge of extra mucus from the nose. This mucus can also run down the throat, causing symptoms of postnasal drip.When postnasal drip is due to allergic rhinitis, allergens breathed into the nose trigger an allergic reaction. This leads to a release of chemicals, including histamine, which cause inflammation and the production of extra mucus.ostnasal drip: Treatments. Treatment of post nasal drip varies depending on the underlying cause, the age and general health of the patient, the severity, and other factors. A common general treatment is gently irrigating the nose with a sterile saline solution.