Root rot is a condition found in both indoor and outdoor plants, although more common in indoor plants with poor drainage. As the name states, the roots of the plant rot. Usually, this is a result of overwatering. In houseplants, it is a very common problem, and is slightly less common in outdoor plants. In both indoor and outdoor plants, it is usually lethal and there is no effective treatment.
The excess water makes it very difficult for the roots to get the air that they need, causing them to decay. To avoid root rot, it is best to only water plants when the soil becomes dry, and to put the plant in a well-drained pot. Using a heavy soil, such as one dug up from outdoors can also cause root rot.
Many cases of root rot are caused by members of the water mould genus Phytophthora. Perhaps the most aggressive is P. cinnamomi. Spores from root rot causing agents do contaminate other plants, but the rot cannot take hold unless there is adequate moisture. Spores are not only airborne, but are also carried by insects and other arthropods in the soil.
A plant with root rot will not normally survive, but can often be propagated so it will not be lost completely. Plants with root rot should be removed and destroyed.
Read more about Root Rot: Hydroponics, Particular Diseases, See Also
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... Fungal diseases Armillaria root rot Shoestring root rot Armillaria mellea Rhizomorpha subcorticalis Botryosphaeria dieback Botryosphaeria dothidea Fusicoccum aesculi Botrytis ... rhododendri Chrysomyxa piperiana Chrysomyxa roanensis Clitocybe root rot (mushroom root rot) Armillaria tabescens = Clitocybe tabescens Coryneum leaf spot ... Phytophthora citrophthora Phytophthora heveae Phytophthora lateralis Phytophthora root rot Phytophthora cactorum Phytophthora cinnamomi Phytophthora citricola Powdery ...
... Colletotrichum gloeosporioides Armillaria root rot (shoestring root rot) Armillaria mellea Rhizomorpha subcorticalis Botrytis petal blight Botrytis cinerea Botryotinia fuckeliana Bud ... Ovulitis azaleae Pestalotia leaf spot twig blight, and crown rot Pestalotiopsis sydowiana = Pestalotia rhododendri Phomopsis dieback Phomopsis spp Phyllosticta leaf spot Phyllosticta spp ... parasitica = Phytophthora parasitica Phytophthora root rot and wilt Phytophthora cinnamomi Phytophthora nicotianae var ...
... = Colletotrichum lagenarium Glomerella lagenarium Belly rot Rhizoctonia solani Thanatephorus cucumeris Black root rot Thielaviopsis basicola Blue mold rot Penicillium spp ... Penicillium digitatum Cephalosporium root and hypocotyl rot, stem streak and dieback Acremonium spp ... Cephalosporium spp Cercospora leaf spot Cercospora citrullina Charcoal rot Vine decline and fruit rot Macrophomina phaseolina Choanephora fruit rot Choanephora cucurbitarum Collapse of ...
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