Dr. Phyto

spineless yucca

Yucca elephantipes

Diseases & pests on this plant

• overwatering / waterloggingabiotic_overwatering

  Yellow lower leaves, soft stem base, root rot signs.

• brown soft scaleCoccus hesperidum

  Flat oval brown-tan scales (3-5mm) on undersides of leaves + along stems, sticky honeydew dripping onto floor or lower leaves, black sooty mould growing on the honeydew, leaf yellowing + drop in heavy infestations, ants attracted to honeydew.

• bacterial soft rotPectobacterium carotovorum

  Water-soaked dark patches on bulbs/heads/tubers that quickly turn slimy + foul-smelling, complete liquefaction of internal tissue, characteristic strong fishy/sulphur odour from rotting tissue, infections spread rapidly in storage if not separated, conditions of warmth + moisture accelerate rot to whole-bin loss within days.

• Pythium damping-off + root rot (multi-host)Pythium ultimum

  Seedlings rot at soil line + collapse (damping-off), brown mushy roots when plants pulled up, plants stunted + yellow despite watering, sudden plant collapse during stress periods, foul earthy smell from rotted tissue.