crown rot


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crown rot

[′krau̇n ‚rät]
(plant pathology)
Any plant disease or disorder marked by deterioration of the stem at or near ground level.
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2 = moderate or severe yellowing of leaves with or without wilting, stunting, severe rot on taproot and secondary roots, crown rot with or without hypocotyls rot, and vascular discoloration in the stem,
To avoid crown rot, set the plants so their crowns rise about an inch above surrounding soil.
Crown rot, which occurs when water accumulates where grass blade meets grass root at the soil line, is usually lethal.
Contract Awarded for crown rot germplasm enhancement for wheat
Sampangine-based compounds have been shown to control fungi such as Botrytis cinerea, which causes gray mold on tomatoes; Colletotrichum fragariae, which causes anthracnose crown rot and will in strawberry plants; and Fusarium oxysporum, which causes vascular will in crops such as potatoes, sugarcane, and many ornamentals.
A postmortem investigation revealed that the plum tree had been watered daily, with the spray of two sprinklers directed at the base of the tree, leading to crown rot.
Contract Awarded for develop new crown rot resistant barley germplasm
To prevent crown rot, keep mulch several inches away from stems and trunks.
In experiments, it has controlled other diseases caused by Phytophthora species, the organism responsible for crown rot of apple trees.
Control of crown rot of banana is the Company's first program in tropical fruit.