Dr. Phyto

citron

Citrus medica

Diseases & pests on this plant

• 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.

• two-spotted spider miteTetranychus urticae

  Yellow stippling on upper leaf surface, fine webbing.

• California red scaleAonidiella aurantii

  Tiny reddish-brown scales on leaves, twigs and fruit.

• citrus mealybugPlanococcus citri

  White cottony tufts at leaf nodes, in leaf folds and at the base of petioles; sticky honeydew on leaves and below the pot; slowed growth; leaves yellowing.

• citrus blackflyAleurocanthus woglumiEU-notifiable quarantine organism

  Black slipper-shaped scales (the nymphal stage — very distinctive) on undersides of citrus leaves, copious honeydew + black sooty mould on leaves + fruit + ground beneath trees, leaf yellowing + premature drop, branch dieback in heavy infestations, fruit downgrade from cosmetic damage.