 | | Diseases | | Sudden Oak Death Syndrome | Sudden death of oaks, SOD, is caused by ambrosia fungus, which is spread by the oak ambrosia beetle. The beetles bore into the trunks of mature oaks and inoculate their galleries with spores of the fungus. Anyone with coast live oaks, tanbark oaks or black oaks in their garden should be aware of the sudden death of oak syndrome and how to recognize the symptoms.
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 | | Diseases | | Sunscald | Even during the warmest days of summer, heat alone only damages a few sensitive species. Extreme solar exposure, minimal humidity or insufficient soil moisture causes ‘Heat’ damage.
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 | | Diseases | | Phytophthera: Sudden Oak Death Syndrome | The two main pathogens associated with the phytophthera disease have been the western oak bark beetle and the oak ambrosia beetle. Infection of rhododendrons only occurs on foliage during rainy periods and only near the ground. When the disease had annihilated several hundred coast live oaks and tanbark oaks on his rhododendron farm …
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 | | Diseases | | Powdery Mildew And Anthracnose | Regardless of resistance to the most common fungal pathogens that affect other vegetables and flowers, corn is detrimentally stunted by inhibited growth because it is on such a ‘strict schedule’. Unfortunately, while growth is inhibited, susceptibility to fungal diseases, such as powdery mildew and anthracnose, is enhanced.
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 | | Diseases | | Anthracnose and Modesto Ash | Regardless of what my colleagues tell me, I have always liked the Modesto ash and the shamel ash as actually one of my favorite trees. I realize that ash innately exhibit inferior structural integrity and are susceptible to anthracnose, but they are just so rad.
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