Papaya Mealybug and its Management Strategies

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The papaya mealybug, Paracoccus marginatus Williams and Granara de Willink (Hemiptera: Pseudococcidae) is a small polyphagous sucking insect with pest status that attacks several genera of host plants, including economically important tropical fruits, vegetables and ornamentals. Infestation of the mealybug appears as clusters of cotton-like masses on the above-ground portion of plants with long waxy filaments. Immature and adult stages of P. marginatus suck the sap of the plant and weaken it. The leaves become crinkled, yellowish and wither. The honey dew excreted by the bug and the associated black sooty mould formation impairs photosynthetic efficiency of the affected plants.
Contents

  • Origin and distribution
  • Morphology
  • Host plants
  • Damage symptoms
  • Biology
  • Factors responsible for high population buildup
  • Mode of dispersal
  • Association with ants
  • Association with other species of mealybugs
  • Management strategies
    • Cultural and mechanical control
    • Biological control
    • Chemical control
    • Phytosanitary measures
  • Guidelines and cautions

 

Autores: 
R.K. Tanwar
Autores: 
P. Jeyakumar
Autores: 
S. Vennila
Editora: 
National Centre for Integrated Pest Management (ICAR)
Año: 
2010