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Crop Protection :: Turmeric and Ginger

Shoot borer: Conogethes punctiferalis     

Symptoms of damage
  • Yellowing and drying of leaves of infested pseudostems.
  • The presence of a bore-hole on the pseudostem through which frass is extruded and the withered and yellow central shoot
borer dichocrocis

Damaged leaves and larva presence on the inside stem

Identification of pest
  • Egg: is pink, oval, flat and lays singly or in group on the tender part of the plant
  • Larva: is long, pale greenish with a pinkish was dorsally, head and pro-thoracic shield brown in colour and body covered with minute hairs arising on wards.
  • Pupa: Pupation takes place in lose silken coccon in larval tunnel.
  • Adult: is a medium sized moth, the wings are pale yellowish with black spots on the wings. 
Pest of Turmeric and Ginger AaConogethes_punctiferalis
Larva Adult

  • Spraying malathion 0.1% at 30 day intervals during July to October is effective in controlling the pest infestation.
  • The spraying has to be initiated when the first symptom of pest attack is seen on the inner most leaves on the pseudostem.

Rhizome scale: Aspidiella hartii

Symptoms of damage
  • Field infestation

    • Plants look devitalized, pale and withered before drying completely.
    • In such cases at the time of harvest minute yellowish crawlers can be seen moving in large numbers and this is the potential stage of dissemination.

Identification of pest

Storage infestation

  • In Initial stage of infestation in, the white coloured scales are seen scattered on rhizomes and latter they congregate near the growing buds.
  • When the infestation is severe the rhizome and buds shrivel and ultimately the entire rhizome dries.


  • Female: scales are circular (about 1mm diameter) and light brown to gray and appear as encrustations on the rhizomes.
  • Male is orange coloured with transparent wings, distinct head, thorax and abdomen.

  • Discard and do not store severely infested rhizomes
  • Collect and destroy damaged leaves
  • Select healthy rhizomes free from scale infestation for seed materials
  • Treat seed material with quinalphos 0.075% (for 20-30 minutes) before storage and also before sowing in case the infestation persists.
  • Apply well rotten sheep manure @ 10 t/ ha in two splits or poultry  manure in 2 splits followed by drenching dimethoate 30 EC @ 2 ml or phosalone 35 EC @  2ml /lit of water

Leaf roller: Udaspes folus

Symptoms of damage
  • Leaves become folded or rolled longitudinally
  • Complete defoliation
Leaf Spot

Identification of pest
  • Larva: is smooth green with black head


  • It is brownish black butterfly
  • Forewing: has a white spots
  • Hind wing: has a large white patch
gdemon-cat-Dscn6640 Hesperiidae_Udaspes_folus
Larva Adult

  • A spray with carbaryl (0.1%) or dimethoate (0.05%) may be undertaken when the severe infestation   
  • Spray the following dissolved in 1 lit of water, Bavisitin 2g +Mancozeb 2g + Teefol 1 ml

Thrips: Panchaetothrips indicus 

Symptoms of damage
  • Leaves become rolled up
  • Turn pale and gradually dry-up

Identification of pest
  • Adult is with fringed wings

  • Spray insecticides like quinalphos 0.025% or fenthion or phosalone 0.07%

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