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Evolution and InnovationSave Biodiversity...Rise

Anthurium

Crop: Anthurium

S.N: Anthurium spp

Family: Araceae

Pests

ANTHURIUM INSECTS & PESTS :

1. Aphid, Myzus circumflexus  

Symptom of damage

  • Nymphs and adults suck the plant sap
  • Yellowing and distortion of leaves and poor growth. 
  • Honeydew excretion causes black sooty mould fungus.
Management
  • Spraying of any following insecticides
    • dicofol 2ml/lit
    • malathion 2ml/lit
    • phosphomidon 2ml/lit
  • A formulation containing pyrethrum extract gave effective control
  • Field release of parasitic wasp Aphidius colemani 5/m2 per week
Aphidius colemani   Adalia bipunctata

 

2. Thrips, Chaetanaphothrips orchidii   

Symptoms of damage

  • Nymphs and adults suck the sap from leaves
  • Mottled effect on foliage and flowers.
Management
  • In netted areas, insecticide granules are very effective in decreasing injury to flowers by C. orchidii
  • Foliar sprays cyfluthrin 2.0 EC and chlorpyriphos 1ml/lit are effective in reducing the number of injured flowers. 
  • Spraying of dimethoate 30 EC @ 1 ml/l or phosphamidon 85 WSC @ 0.5 ml/l also controls thrips.
  • Field release of predatory mite Amblyseius cucumeris 500,000/ha
Amblyseius cucumeris

 

3. Whitefly,  Bemisia tabaci, Aleurotulus anthuricola         

Symptom of damage

  • Nymphs and adults suck the sap from leaves. 
Management
  • Systemic insecticides like methomyl 1.8 L or dimethoate 30 EC ( reduced eggs, nymphs, pupae and adults.)
  • Malathion 50 EC is effective against adults and pupae.
  •  Bifenthrin 10 WP was effective only against adults.
  • Methomyl 1.8 L and acephate 75 SP reduced the number of nymphs and pupae
  • Field release of parasitic wasp - Encarsia formosa 3/m2  can be followed  
Encarsia formosa

 

4. Red spider mite Tetranychus cinnabarinus 

Symptom of damage

  • Spider mite causes - yellowish mottling of the leaves
  • Leaves shrivel and turn brown. 
  • A fine web spun on the undersurface of leaves.
Identification of the pest
  • Nymphs and adults are red in colour.
  • Eggs are laid on the ventral surface of the leaves and are whitish, spherical in shape
Adult

 

Management
  • Spraying the affected plants with dicofol 18.5 EC @ 0.8 ml/l of water.
  • Field release of predatory mite - Phytoseiulus persimilis 6/ m2
Phytoseiulus persimilis
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