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Fungal diseases; Armillaria root rot Armillaria mellea: Black root rot Thielaviopsis basicola: Blackleg. Cutting rot Pythium sp. : Botryosphaeria stem rot Botryosphaeria ribis
Wilt diseases in woody plants tend to fall into two major categories, those that start with the branches and those that start with the roots. Those that start with the branches most often start with pathogens that feed on the leaves or bark, those that start with the roots start with wounding or direct entry by the pathogen into the roots, some ...
Geranium robertianum, commonly known as herb-robert, or (in North America) Robert's geranium, is a species of cranesbill that is widespread throughout the northern hemisphere and introduced to some countries in the southern. It is common in woods, hedges, gardens, and on waste ground, and can also be found on shingle beaches and limestone ...
Ralstonia solanacearum is an aerobic non-spore-forming, Gram-negative, plant pathogenic bacterium. R. solanacearum is soil-borne and motile with a polar flagellar tuft.It colonises the xylem, causing bacterial wilt in a very wide range of potential host plants.
It causes wilting and yellowing of the leaves. [7] F. oxysporum f. sp. lycopersici causes vascular wilt in tomato. The disease starts out as yellowing and drooping on one side of the plant. Leaf wilting, plant stunting, browning of the vascular system, leaf death and lack of fruit production also occur. [8]
The plant is poisonous, containing cardiostimulant compounds such as adonidin and aconitic acid. [42] Aesculus hippocastanum: horse-chestnut, buckeye, conker tree Sapindaceae: All parts of the raw plant are poisonous due to saponins and glycosides such as aesculin, causing nausea, muscle twitches, and sometimes paralysis. [43] Agave spp.
Geranium is a genus of 422 species of annual, biennial, and perennial plants that are commonly known as geraniums or cranesbills. They are found throughout the temperate regions of the world and the mountains of the tropics, with the greatest diversity in the eastern part of the Mediterranean region .
The specific epithet hortorum is a genitive plural form of the Latin "hortus" ("garden") and therefore corresponds to "horticultural".The name was created by the American botanist Liberty Hyde Bailey who in 1914, writes "The large number of forms of the common geranium, derives from the variation and probably the crossing of P. zonale and P. inquinans (and possibly others) during more than a ...