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Disease & Defence b.stev Rhizoctonia solani
Rhizoctonia solani  is a   FUNGUS FUNGUS   grows on BOTH  living  &  dead   PLANTS forms :   small irregular structures called:  sclerotia -   these develop a  brown/black  colour in maturity Sclerotia   makes the  fungus  a competitive inhabitant in soil – can survive for YEARS ,[object Object],[object Object],(Wikipedia, 2008)
HOW   the  disease  attacks   the   PLANT (Wikipedia, 2008)
attacks  in the  soil :  unless the,  UPPER   plant /  fruit   is  SPRAYED  with infected  H 2 O   OR   PLANT  tissue Rhizoctonia solani  is a  condition  in agriculture called:  ” damping off ,”.   - as it causes  DEATH  to seedlings
ALSO :   “  wire   stem   disease ,”:in   cabbage/cauliflower &  similar  plants -  results  in   constricted   wiry  stems in growth of the  older  seedlings (North Carolina State University, 1999)
WHAT   can be  done : ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],(North Carolina State University, 1999)
Bibliography North Carolina State University. (1999).  Rhizoctonia solani . Retrieved September 3, 2008, from  www.cals.ncsu.edu/course/pp728/ Rhizo ctonia / Rhizoctonia .html Wikipedia. (2008).  Rhizoctonia solani . Retrieved September 3, 2008, from http//:www.en.wikipedia.org/wiki/ Rhizoctonia _ solani  - 27k -

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Disease & Defence - Rhizoctonia solani

  • 1. Disease & Defence b.stev Rhizoctonia solani
  • 2.
  • 3. HOW the disease attacks the PLANT (Wikipedia, 2008)
  • 4. attacks in the soil : unless the, UPPER plant / fruit is SPRAYED with infected H 2 O OR PLANT tissue Rhizoctonia solani is a condition in agriculture called: ” damping off ,”. - as it causes DEATH to seedlings
  • 5. ALSO : “ wire stem disease ,”:in cabbage/cauliflower & similar plants - results in constricted wiry stems in growth of the older seedlings (North Carolina State University, 1999)
  • 6.
  • 7. Bibliography North Carolina State University. (1999). Rhizoctonia solani . Retrieved September 3, 2008, from www.cals.ncsu.edu/course/pp728/ Rhizo ctonia / Rhizoctonia .html Wikipedia. (2008). Rhizoctonia solani . Retrieved September 3, 2008, from http//:www.en.wikipedia.org/wiki/ Rhizoctonia _ solani - 27k -