Friday, March 13, 2020

Narrow leaf angelon

Common name: Narrow leaf angelon

Scientific name:Angelonia angustifolia

Family: Plantaginaceae

Distribution: Native to Mexico, Central America and Tropical South America.
Characteristics
Growth:
perennial

  • fast-growing
  • The plants usually grow to a width of 10 to 30 centimetres.
Leaves:
  • Deciduous
  • Simple leaves are opposite
  • Lanceolate with dentate margins.
  • Leaves have a glabrous surface.
Flowers
  • spikes of light purple labiate flowers
Cultivation
Soil and Climate

  • prefer a sunny situation
  • Prefer sandy loam or gritty loam
  • pH between 5,5 and 6,5
  • The plants tolerate temperatures only above at least 1°C.
Care and special practices
  • The plants need little to no maintenance if grown under suitable conditions.
  • Allow the soil to become slightly dry in between watering.
Fertilizer application
  • Give compost at planting.
Propagation
  • By seed or by cuttings.
Pests and diseases
Insect pests
Aphids:

  • Symptoms:Honeydew, galls and distorted leaves are a sign for an infestation with aphids.
  • Management:Use an insecticide or control biologically, e.g. with parasitic wasps or predators such as Aphidoletes aphidimyza.
Diseases:
Botrytis Rot:
  • Rot on leaves, shoots, flowers or fruits indicated an infection with grey mould (botrytis).
Management:
  • Remove and destroy affected plants.
Apply fungicide.
  • Improve ventilation and hygiene and avoid injuring the plants to prevent infections.
2. Powdery mildew:
Symptoms:
A powdery white coat on the plants indicates an infection with powdery mildew.
Management:
  • Remove affected plants and apply a fungicide.
  • To prevent infection improve ventilation, keep the roots moist and do not water the plants from above.
Downy mildew:
Symptoms:
  • White tufts or white covering on the lower surface of the leaves indicates an infection with downy mildew.
Management:
  • Remove affected plants and apply a fungicide.
  • To prevent infection improve ventilation, keep the roots moist and do not water the plants from above.
Rhizoctonia root rot:
Symptoms:
  • Withered seedling or rotting roots and discoloured leaves on older plants indicated a fungal infection (rhizoctonia).
Management:
  • Remove affected parts and apply fungicide. Prevent infection by improving hygiene

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