coronavirus
Leaf Spot in Philadelphus
How to identify and treat leaf spot in Philadelphus.
potted_plant
Philadelphus care requirements
water
Moderate watering; water regularly during establishment and growing season; fairly drought-tolerant once mature
soil
Well-draining soil; tolerates poor, sandy, and clay soils; pH adaptable from acidic to alkaline
light
Full sun to partial shade; prefers at least 6 hours of sunlight daily; tolerates light shade
symptoms
Symptoms to look for in Philadelphus
- fiber_manual_recordCircular brown or black spots
- fiber_manual_recordYellow halos around spots
- fiber_manual_recordPremature defoliation
help
Common causes in Philadelphus
Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.
healing
How to treat leaf spot in Philadelphus
Remove affected leaves. Apply appropriate fungicide or bactericide.
shield
Preventing leaf spot in Philadelphus
Water at soil level. Improve air circulation. Practise crop rotation.