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Crop Protection :: Pest of medicinal yam

Aphids: Aphis gossypii, Pentalonia nigronervosa
Symptoms of damage
  • Aphids cause damage to young seedlings
  • Nymph and adults suck the sap from leaves and stems of young vines.
  • As a result, new growth is adversely affected.
Identification of the pest
A. gossypii
  • Globular yellowish green to brown or black in colour.  

Management

  • Spray neem oil 0.5% (or) NSKE 5%.
  • Conserve natural enemies like parasitoids and predators

 

Adult
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