potted_plant
Guava care requirements
water
Drought-tolerant once established. Water regularly during growth and fruiting; reduce in dry season. Overwatering can cause root problems.
soil
Highly adaptable; tolerates poor, sandy, or clay soils (pH 4.5–9.0). Well-draining soil preferred. Minimal fertilizer needed.
light
Full sun (6–8+ hours daily). Tolerates partial shade but fruiting is reduced.
symptoms
Symptoms to look for in Guava
- fiber_manual_recordSunken, discolored, or cracked lesions on bark, stems, or branches
- fiber_manual_recordOozing sap or dark staining around the lesion
- fiber_manual_recordDieback of the branch or stem beyond the canker site
help
Common causes in Guava
Canker is a general term for localized bark and wood lesions caused by various fungal pathogens (such as Nectria or Cytospora) or, less commonly, bacteria, which typically enter through wounds, pruning cuts, or frost damage, especially on stressed plants.
healing
How to treat canker in Guava
Prune out affected branches well below the canker margin, disinfecting tools between cuts, and improve overall plant vigor to help it resist further infection.
shield
Preventing canker in Guava
Avoid wounding bark, prune during dry weather, and keep plants well watered and fed to reduce stress that predisposes them to infection.