warning
Pale Leaves in Courgette Yellow
symptoms
Symptoms
- fiber_manual_recordWashed-out, pale colour
- fiber_manual_recordYellowing between veins
help
Causes
- fiber_manual_recordIron deficiency
- fiber_manual_recordMagnesium deficiency
- fiber_manual_recordToo much direct sun
- fiber_manual_recordAlkaline soil
troubleshoot
How to Diagnose
Interveinal yellowing on new growth = iron deficiency. On old growth = magnesium deficiency.
healing
Treatment
Apply chelated iron or Epsom salt as appropriate. Adjust soil pH.
shield
Prevention
Use ericaceous compost for acid-loving plants. Feed with micronutrient fertiliser.