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Due to commonalities in symptoms of P. juniperova and related Phomopsis blights, diagnosis can often be difficult. Although the observation of symptoms is the first step in identification of this pathogen, the presence of both alpha and beta spores in the pycnidium must be verified in order to confirm the existence of P. juniperova.
J. sabina Calgary Carpet – Highlighted by soft, green foliage and boasting a very low, spreading habit, this carpet juniper is a great groundcover for slopes, trailing over retaining walls or ...
The juniper carpet (Thera juniperata) is a moth of the family Geometridae. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae . It is found throughout Europe and the Near East , but is rather uncommon and locally distributed, mainly due to its very specific larval food plant.
Plant diseases are diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). [1] Organisms that cause infectious disease include fungi , oomycetes , bacteria , viruses , viroids , virus -like organisms, phytoplasmas , protozoa , nematodes and parasitic plants . [ 2 ]
The following are examples of disease management plans used to control macrocyclic and demicyclic diseases: Macrocyclic disease: Developing a management plan for this type of disease depends largely on whether the urediniospores (rarely termed the "repeating stage") occur on the economically important host plant or the alternate host.
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 ...
Juniperus scopulorum is a small evergreen tree that in favorable conditions may reach as much as 20 metres (66 feet) in height. [4] However, on sites with little water or intense sun it will only attain shrub height, and even those that reach tree size will more typically be 4.6–6.1 metres (15–20 feet) tall in open juniper woodlands. [5]
Juniperus horizontalis, the creeping juniper or creeping cedar, [4] is a low-growing shrubby juniper native to northern North America, throughout most of Canada from Yukon east to Newfoundland, and in some of the northern United States.