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Phomopsis blight of juniper is a foliar disease discovered in 1917 [1] caused by the fungal pathogen Phomopsis juniperovora.The fungus infects new growth of juniper trees or shrubs, i.e. the seedlings or young shoots of mature trees.
This mistletoe parasitizes species of juniper, including Utah (Juniperus osteosperma), Rocky Mountain (J. scopulorum), and western juniper (J. occidentalis). [ 3 ] It is a shrub producing many erect and spreading yellow-green branches 20 to 40 centimeters long from a woody base where it attaches to its host tree, tapping the xylem for water and ...
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Gymnosporangium sabinae is a species of rust fungus in the subdivision Pucciniomycotina.Known as pear rust, European pear rust, or pear trellis rust, it is a heteroecious plant pathogen with Juniperus sabina (savin juniper) as the main primary host and Pyrus communis (common pear) as the main secondary host.
However, leaf spots may, in advanced stages, expand to kill entire areas of leaf tissue and thus exhibit blight symptoms. Blights are often named after their causative agent. For example, Colletotrichum blight is named after the fungus Colletotrichum capsici, and Phytophthora blight is named after the water mold Phytophthora parasitica. [11]
A fungus that causes deadly white-nose syndrome in bats has taken hold in five California counties and may be present as far south as San Diego. A fungus that causes deadly white-nose syndrome in ...
A deadly fungus that led to the death of millions of bats across North America has been detected in several counties across California, wildlife officials announced this week. The Department of ...
Agroathelia rolfsii typically prefers warm, humid climates (whence the name of the disease, Southern Blight) which is required for optimal growth (i.e. to produce mycelium and sclerotia). [ 12 ] [ 8 ] [ 11 ] This makes the disease an important issue in regions such as the Southern United States of America, especially for solanaceous crops. [ 13 ]