Plant Diseases

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clubroot

The Columbia Encyclopedia, 6th ed. | 2011 | Copyright

clubroot disease of cabbages, turnips, radishes, and other plants belonging to the family Cruciferae ( mustard family). It is induced by a plasmodial slime mold that attacks the roots, causing, in the cabbage, undeveloped heads or a failure to head at all. Clubroot can be partially or in some cases completely controlled by the application of lime (if the soil is very acid), by rotation of crops, and by soil sterilization. The disease is also called finger-and-toe from the swollen shape it gives to roots. Plasmodial slime molds (phylum, or division, Myxomycota) are classified in the kingdom Protista .

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clubroot

A Dictionary of Plant Sciences | 1998 | | Copyright

clubroot (finger and toe) A serious disease of cruciferous (Cruciferae) plants, e.g. cabbages and broccoli. Symptoms include wilting of plants in bright sunshine, and the leaves may take on a bluish or reddish coloration. The roots show characteristic gall-like swellings. The disease is caused by the fungus Plasmodiophora brassicae. This organism can survive in the soil for many years, even in the absence of host plants.

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MICHAEL ALLABY. "clubroot." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "clubroot." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O7-clubroot.html

MICHAEL ALLABY. "clubroot." A Dictionary of Plant Sciences. 1998. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-clubroot.html

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clubroot

A Dictionary of Ecology | 2004 | | Copyright

clubroot(finger and toe) A serious disease of cruciferous (Cruciferae) plants, e.g. cabbages and broccoli. Symptoms include wilting of plants in bright sunshine, and the leaves may take on a bluish or reddish coloration. The roots show characteristic gall-like swellings. The disease is caused by the fungus Plasmodiophora brassicae. This organism can survive in the soil for many years, even in the absence of host plants.

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MICHAEL ALLABY. "clubroot." A Dictionary of Ecology. 2004. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "clubroot." A Dictionary of Ecology. 2004. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O14-clubroot.html

MICHAEL ALLABY. "clubroot." A Dictionary of Ecology. 2004. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-clubroot.html

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Free newspaper and magazine articles

	Don't believe hype, diseases just march on; Gardening.(Features) Newspaper article from: Birmingham Mail (England); 5/18/2007
	CROP FLOP; gardening Do disease-resistant plants really work? By Hannah... Newspaper article from: Daily Post (Liverpool, England); 5/26/2007
	Don't believe hype, diseases just march on Gardening Newspaper article from: Birmingham Evening Mail (England); 5/18/2007