Excess telluric water


  • Organs affected  : leaves, roots, vessels.
  • Symptoms  :
    • root browning and rotting, decaying cortex (Figures 1);
    • sometimes more or less marked browning of the vessels located in the pivot and the lower part of the stem (figure 2);
    • more or less rapid wilting (figure 3), yellowing (figures 4 to 6), even necrosis of leaflets and / or lower leaves of plants;
    • reduced plant growth.
  • Cause(s)  :
    • poor irrigation management;
    • heavy and hydromorphic soil or poorly draining substrate;
    • accumulation of water in poorly drained areas;
    • heavy rains or ruptured irrigation pipes, due to the deficiency of solenoid valves;
    • more or less significant submersion of culture, etc.
  • Diagnostic clues :
    • the affected plants are often distributed over the whole plot, or in certain areas or in certain rows;
    • the plot is poorly drained, the soil is rather heavy;
    • the soil or the substrate seem rather saturated with water (do not hesitate to see it for yourself);
    • control the quality of plant irrigation (mode, frequency, efficiency);
    • monitor recent climatology (significant rainfall).
  • Possible confusion : microorganisms and root parasitic pests, etc.
  • Remedies  :
    • drain the soil;
    • beware of certain rather asphyxiating substrates;
    • rectify the frequency and quantities of water supplied at each irrigation;
    • butter the plants so that they can produce new roots (option valid only for species with significant root regeneration capacities).
Last change : 10/14/21
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6