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2. Scorias - Wikipedia

   en.wikipedia.org/wiki/Scorias

   Sooty moulds grow in thin black layers on leaves on which aphids, witefly or other sap-sucking insects have deposited their honeydew. It does not grow parasitically but it harms plants indirectly and is also unsightly. The mould coats the leaves and this blocks out light and makes photosynthesis less effective. Plant growth can be reduced ...

3. How To Care For Hydrangeas In The Winter So You'll Have ... - AOL

   www.aol.com/care-hydrangeas-winter-youll...

   Oakleaf hydrangeas (Hydrangea quercifolia) are so named because their foliage is deeply lobed, resembling the appearance of an oak leaf. Smooth hydrangeas (Hydrangea arborescens) tend to have ...

4. Sooty mold - Wikipedia

   en.wikipedia.org/wiki/Sooty_mold

   Sooty mold is commonly seen on the leaves of ornamental plants such as azaleas, gardenias, camellias, crepe myrtles, Mangifera and laurels. Karuka is affected by sooty mold caused by Meliola juttingii. [6] Plants located under pecan or hickory trees are particularly susceptible to sooty mold, because honeydew-secreting insects often inhabit ...

5. Scorias spongiosa - Wikipedia

   en.wikipedia.org/wiki/Scorias_spongiosa

   Scorias spongiosa is a specialist and grows exclusively on the honeydew formed by colonies of the beech blight aphid, Grylloprociphilus imbricator.This aphid is found only on one host plant, the American beech tree, Fagus grandifolia, where it congregates on branches and twigs, creating copious amounts of honeydew that drip onto vegetation below. [1]

6. It's peak hydrangea blooming season. Are your plants healthy?

   www.aol.com/peak-hydrangea-blooming-season...

   "Symptoms of overwatered hydrangeas may include brown and wilted leaves, yellow leaves that will drop from the plant, and stunted growth," according to Epic Gardening's hydrangea plant guide ...

7. List of hydrangea diseases - Wikipedia

   en.wikipedia.org/wiki/List_of_hydrangea_diseases

   Bacterial leaf spot Pseudomonas cichorii: Fungal diseases ... Powdery mildew Erysiphe polygoni. Root rot Pythium spp. ... Hydrangea ringspot virus: Ringspots

8. 'Hydrangea hysteria': Last week's chill may have ... - AOL

   www.aol.com/hydrangea-hysteria-last-weeks-chill...

   A similar hydrangea danger situation occurred in March 2017, when a seemingly miffed C.L. Fornari prepared to cover hydrangea buds with a tarp at her Sandwich home in advance of a cold snap.

9. Hydrangea - Wikipedia

   en.wikipedia.org/wiki/Hydrangea

   Hydrangea flower color changes based on the pH in soil. As the graph depicts, soil with a pH of 5.5 or lower will produce blue flowers, a pH of 6.5 or higher will produce pink hydrangeas, and soil in between 5.5 and 6.5 will have purple hydrangeas. Hydrangea flower color can change based on the pH in soil.