Home/Plants/Ageratum/Leaf Spot
coronavirus

Leaf Spot in Ageratum

How to identify and treat leaf spot in Ageratum.

potted_plant

Ageratum care requirements

water
Keep soil consistently moist but not waterlogged; water when top inch of soil is dry
soil
Well-draining, fertile soil rich in organic matter; pH 5.5–7.5
light
Full sun to light shade (at least 4–6 hours of direct sun); blooms best in full sun
symptoms

Symptoms to look for in Ageratum

  • fiber_manual_recordCircular brown or black spots
  • fiber_manual_recordYellow halos around spots
  • fiber_manual_recordPremature defoliation
help

Common causes in Ageratum

Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.

healing

How to treat leaf spot in Ageratum

Remove affected leaves. Apply appropriate fungicide or bactericide.

shield

Preventing leaf spot in Ageratum

Water at soil level. Improve air circulation. Practise crop rotation.