Millets and Maize | Cryptoblabes gnidiella
Cryptoblabes gnidiella (Millière, 1867); Common Name: Sorghum web worm
Taxonomy Information
Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera
Superfamily
Pyraloidea
Family
Pyralidae
Subfamily
Phycitinae
Genus
Cryptoblabes
Species
gnidiella
Author
(Millière, 1867)
Field Identification

This insect pest is increasing in importance on hybrids and high yielding cultivars of sorghum in India. The adult has dark-gray forewings. Hind wings, fringed with hairs on the anterior margin, are larger than the forewings. Creamy-white, round or conical eggs are laid on spikelets and kernels. The newly-hatched larva is dirty white, with a brown head. The fully-grown, dark brown larva is very active.

Damage

Larvae destroy kernels. They produce webs of silken thread that remain on the panicle. Heavily infested panicles may be covered with webbing.

Key Natural Enemies

Trichogramma sp.

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