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Brachystegia spiciformis, commonly known as zebrawood, [2] or msasa, [3] is a medium-sized African tree having compound leaves and racemes of small fragrant green flowers. The tree is broad and has a distinctive amber and wine red colour when the young leaves sprout during spring (August–September).
Mycosphaerella musicola was first reported from Java in 1902 and by 1962 was found in most banana growing regions of the world. Although it is spread over short distances by conidia and ascospores, over long distances it is the movement of infected germplasm such as diseased leaves and suckers that is likely to be responsible.
Laminated root rot also known as yellow ring rot is caused by the fungal pathogen Phellinus weirii. Laminated root rot is one of the most damaging root disease amongst conifers in northwestern America and true firs , Douglas fir , Mountain hemlock , and Western hemlock are highly susceptible to infection with P. weirii .
Symptoms can overlap across causal agents, however differing signs and symptoms of certain pathogens can lead to the diagnosis of the type of leaf spot disease. Prolonged wet and humid conditions promote leaf spot disease and most pathogens are spread by wind, splashing rain or irrigation that carry the disease to other leaves.
The name zebrawood is used to describe several tree species and the wood derived from them. Zebrawood is characterized by a striped figure that is reminiscent of a zebra . The name originally applied to the wood of Astronium graveolens , [ citation needed ] a large tree native to Central America.
The solution: You can remove old, yellow peace lily leaves with scissors or by pinching them off the plant with your fingers. This improves the look of your peace lily and redirects the plant’s ...
wood rot, white root disease (Rigidoporus microporus syn. Fomes lignosus, Rigidoporus lignosus) [1] [2] Typhula sp. (syn. Sclerotium sp.) [1] sooty mold (Scorias spongiosa) [1] [2] [15] leaf mould (Spiropes capensis syn. Helminthosporium capensis) [1] Trametes persoonii [1] sooty mould of twigs, petioles, and leaves (Trichomerium grandisporum ...
The pathogen causes a disease originally named yellow spot but now commonly called tan spot, yellow leaf spot, yellow leaf blotch or helminthosporiosis. [2] [3] At least eight races of the pathogen are known to occur based on their virulence on a wheat differential set. [4] The tan (yellow) spot fungus was first described by Nisikado in 1923 in ...