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Fittonia (or nerve plant or mosaic plant) is a genus of evergreen perennial flowering plants in the acanthus ('bear’s britches') family, Acanthaceae. The genus is native to tropical and subtropical forested areas in northern and western South America, mainly Perú. [2] The most commonly cultivated species is F. albivenis and its range of ...
Fittonia gigantea is a species of flowering plant in the family Acanthaceae, native to tropical rainforest in Ecuador and Peru. [2] [3] Characteristics. Leaves and ...
Fittonia albivenis is a species of flowering plant in the family Acanthaceae, native to the rainforests of Colombia, Peru, Bolivia, Ecuador and northern Brazil. An evergreen perennial , it is notable for its dark green foliage with strongly contrasting white or red veins.
Common Names of Diseases, The American Phytopathological Society Brunt A.A. (2005), Virus and Virus-like Diseases of Bulb and Flower Crops , John Wiley & Sons, New York 10158-0012, USA. Pp. 105–110.
The complete picture of long-term ecological effects from invasive pests is difficult to measure; and it is too early to determine the effects of the many new invasive pest introductions. Much of the research has focused of the biology of the pests—i.e. life cycle and host preferences—towards understanding how to contain their spread. [10]
Blue stain fungi (also known as sap stain fungi) is a vague term including various fungi that cause dark staining in sapwood. [1] The staining is most often blue, but could also be grey or black.
This pathogen was first noted to cause disease in around 1920 on nursery stock near Seattle. [ 1 ] [ 2 ] Pacific yew ( Taxus brevifolia ) is also vulnerable to P. lateralis [ 3 ] [ 4 ] but less susceptible than Lawson cypress trees, and tree mortality has only been observed in areas where C. lawsoniana trees were also infected.
Eventually the enormous number of beetle attacks and subsequent canker formation overwhelms and kills the tree. Thousand cankers is a progressive disease and its effects result from the culmination of a large number of relatively small cankers over a period of time. In end stages of the disease external symptoms become visible. Leaf yellowing ...