Insect Pests of Fruit, Plantation, Medicinal & Aromatic Crops (2+1)

5. Scales

5. Scales - Lepidosaphes cornutus Ramk. (Coccidae: Hemiptera)

Damage

• Both nymphs and adults infest the leaves, petiole and main veins.
  
• The scale infested leaves loose their colour exhibit warty appearance, crinkle and dry up ultimately.
  
• The affected vines present a sickly appearance and wilt in due course.
Management

• Select scale free seed vines.
• Spray chlorpyriphos 20 EC 2 ml/litre when one or two scales are noticed.
• Spray NSKE 5% @ 50 g/litre or malathion 50 EC 1 ml/litre of water.