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Drumstick Insect Pests

Moringa hairy caterpillar

It is a specific and common pest on drumstick.

Biology:
  • Adult: It is a large moth with light yellowish brown wings, having faint lines. Female moth lays eggs in clusters on tender parts.
  • Egg: Egg period is 5-7 days.Drumstick Moringa hairy caterpillar
  • Larva: Caterpillar is dirty brown in colour with whitish hairs arising in tufts on small warts. Hairs are poisonous and irritating. Head capsule and thoracic legs are coral red in colour. Larval period is 20-25 days.
  • Pupa: Larva pupates in soil in an earthen cocoon. Pupal period is 8-10 days.
Damage symptoms:
  • Caterpillars gather in a cluster on the stem of the plants during hot hours of day
  • They are active at night, defoliate the tree quickly and collect on the trunk
  • The larva feeds on leaves causing defoliation

Moringa budworm

Biology:
  • Egg: Creamy oval eggs laid singly or in groups on flower buds.
  • Larva: Dirty brown with a prominent mid dorsal stripe, black head and prothoracic shield.
  • Pupa: Pupation takes place in an earthen cocoon in the soil.
  • Adult: Fore and hind wings are light yellowish brown
Nature and symptoms of damage:
  • In early stages, the caterpillars are gregarious and scrape the chlorophyll content of leaf lamina giving it a papery white appearance.
  • Later they become voracious feeders making irregular holes on the leaves.
  • Irregular holes on leaves initially and later skeletonization leaving only veins and petioles
  • Heavy defoliation.
  • Bored fruits with irregular holes
  • Larvae bore into flower buds feeding on the inner contents and cause shedding up to 78 per cent during summer.
  • Only one caterpillar is seen in a bud

Pod fly:

Biology:
  • Egg: Cigar shaped, laid in groups on the grooves of tender pods.
  • Maggot: Cream coloured maggot
  • Adult: Yellowish fly with red eyes

Leaf caterpillar:

Biology:
  • Egg: Creamy white oval eggs are laid in clusters on leaves.
  • Larva: Devoid of prothoracic shield.
  • Adult: Similar to budworm but bigger in size
Damage symptoms:
  • Caterpillars feed on the leaves and cause defoliation.

Bark caterpillar:

Adult: Adult is pale brown moth. Fore and hindwings are cream-white in color. Forewings have brown spots and streaks.

Drumstick Bark caterpillar

Damage symptoms:
  • Zig-zag galleries and silken webbed masses comprising of chewed material and excreta of larva

Drumstick Bark caterpillar Damage symptoms

IPM for Drumstick

To know the IPM practices for Drumstick, click here.

Source: NIPHMDirectorate of Plant Protection, Quarantine & Storage



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