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

10. Leaf cutting weevil

10. Leaf cutting weevil - Deporaus (= Eugnamptus) marginatus Pasc. (Curculionidae: Coleoptera)

Damage

• The adult beetles cut down the leaf at the base and cause holes on the tender leaves.
Bionomics

• The adult weevil is small, black and brown with a long snout.
• The female excavate the cavities by the snout and lays eggs singly on the under surface of tender leaves.
• The grub mines the fallen leaf feeding on the mesophyll.
  
• It pupates in small oval chamber.