• R. Kenneth Horst
Reference work entry


The word mold, or mould, has many meanings. The first one given in Webster is “a growth, often woolly, produced on various forms of organic matter, especially when damp and decaying, by saprophytic fungi.” Leaf mold is organic matter reduced to friable earth by these saprophytic fungi. When rhododendrons are fed with a fertilizer having a cottonseed meal base, one can often see a moldy growth, showing that beneficial organisms are at work breaking down the material for plant use.


Leaf Spot Saprophytic Fungus Sooty Mold White Mold Greenhouse Crop 
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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • R. Kenneth Horst
    • 1
  1. 1.Department of Plant Pathology and Plant-Microbe BiologyCornell UniversityIthacaUSA

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