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root rot

root rot

1 5.0
A disease that makes plant roots soft and brown after too much water
  • noun
  • /ruːt rɒt/
  • Specialized
translation icon : podredumbre de raíces
  • To prevent root rot, ensure that your plants are not overwatered and that the soil drains well.
  • Phytophthora root rot
  • Pythium root rot
  • Rhizoctonia root rot

So you know what, even plants that like a lot of water, if it doesn't drain good, still can die a root rot.

Examples

  • If left untreated, root rot can severely limit the growth of your plants.

  • Heavy Phytophthora root rot losses occurred on a regular basis on rhododendron, azalea, and other crops highly susceptible to this disease.

    Academic text (2000)
  • Plant 21 died of what may have been Pythium root rot on February 20, 1994.

    Academic text (1998)
  • "We have also noticed," Smart says, "that when we grow corn after cotton, this breaks the cycle of a cotton disease called root rot."

    Academic text (1997)
  • And that drainage really helps to keep things free of root rot and going anaerobic.

  • Pythium root rot was diagnosed by the plant disease laboratory.

    Academic text (1998)
  • Cook notes that these practices also help control Pythium root rot, Rhizoctonia root rot, and other serious wheat diseases.

    Academic text (1995)
  • The nursery industry first observed that composted tree bark seemed to suppress Phytophthora root rots.

    Academic text (2000)
  • The scientists have already provided growers with new sugar beets that offer excellent resistance to Rhizoctonia root rot, plus some tolerance to Cercospora leaf spot, for instance.

    Academic text (2000)
  • It has been shown that Pythium and Phytophthora root rots can indeed be controlled most effectively in composted bark-amended container media.

    Academic text (2000)

How Severe

dry rot
  • Specialized
3 6.3
root rot
  • Specialized
1 5.0
foot rot
  • Specialized
6.2
stem blight
  • Specialized
6.9
to die back
  • Specialized
1 6.7

Surface Forms

root rot singular
root rots plural

Morphology

root + rot

The noun is directly compositional: 'root' (plant organ) + 'rot' (decay) clearly yields a meaning of roots decaying, so a B1 learner who knows both words can infer it refers to decay/disease of the roots. This is a literal, common compound in plant contexts and parallels similar constructions in other languages, making it readily understandable.

Etymology

Root rot comes from the clear image of a plant's roots that turn soft, brown and slowly rot in water-logged soil. So, it means 'a disease that makes the roots rot and often kills the plant'.