Symptoms of damage:

• It is a pest of field and storage
• Larva tunnels into foliage, stem and tubers
• Galleries are formed near tuber eyes

Identification of pest:

• Egg: Laid singly on the ventral surface of foliage and exposed tubers
• Larva: Yellow coloured caterpillar with dark brown head
• Pupa: Pupation occurs within a cocoon among the trash, clods of the earth in the field
• Adult: Small narrow winged moth, greyish brown forewings and hind wings are dirty white

Management:

• Select healthy tubers
• Avoid shallow planting of tubers. Plant the tubers to a depth at 10 - 15 cm deep
• Install pheromone traps at 15/ha.
• Collect and destroy all the infested tubers from the field
• Do not leave the harvested tubers in the field overnight
• Adopt intercropping with chilies, onion or peas
• Do earthing up at 60 days after planting to avoid female moths laying eggs on the exposed tubers
• Cover the upper surface of potato tubers with the branches of Lantana and Eupatorium  to repel the ovipositing moth in the godown
• Release egg larval parasitoid: Chelonus blackburnii @30,000/ha twice at 40 and 70 day after planting
• Spray NSKE @5% or quinalphos 25 EC @2ml/lit of water to manage foliar damage
• Spray Bacillus thuringiensis @1 kg/ha at 10 days interval