8. Mango leaf webber: Orthaga exvinacea (Noctuidae: Lepidoptera)

Distribution and status: Common in South India.

Host range: Mango

Damage symptoms

Larvae web up leaves into clusters and feed within. Leaves surface are scraped and they wither and dry up.

Bionomics : Moth is grayish with brownish wings and has wavy lines on fore wings. Adults lays upto 30 50 yellowish green eggs singly near the leaf veins. Egg period is 4 days. Caterpillar pale greenish with brown head and prothoracic shield. Pupation occurs in leaf web. Adult emerges in 11- 14 days.

Management

Remove and destroy the webbed leaves along with larvae and pupae
Spray carbaryl 50 WP at 2.0 L
Conserve predators like carabid beetle Parena lacticincta, reduvid Oecama sp, parasitoid Hormiusa and fungus Paecilomyces farinosus.