Introduction
Cora King is an insect growth regulator (IGR) based on Diflubenzuron 20% SC. Rather than directly killing adult insects, it works by disrupting the moulting process in larvae and inhibiting egg hatching, effectively breaking the pest lifecycle. It is highly selective and has minimal impact on beneficial insects, birds, and mammals.
How It Works
Diflubenzuron inhibits the biosynthesis of chitin — the structural component of the insect exoskeleton. Without chitin, the insect cannot form a new cuticle during moulting. Larvae fail to moult and die. Eggs treated with Diflubenzuron do not hatch because the embryo cannot form a proper cuticle during development.
Key Benefits
- Selective — targets only moulting insects, safe to beneficial insects, bees, and birds
- Breaks the pest lifecycle by preventing moulting and egg hatching
- Very low mammalian toxicity — safe for farm workers and consumers
- Long residual activity — single application controls multiple larval generations
- Excellent tool for integrated pest management (IPM) programmes
Target Pests & Diseases Controlled
| Common Name | Scientific Name | Affected Crops |
|---|---|---|
| Caterpillars | Spodoptera / Helicoverpa / Plutella spp. | Vegetables, maize |
| Leaf Miner | Liriomyza spp. | Tomato, vegetables |
| Whitefly larvae | Bemisia tabaci | Vegetables |
| Aphids (nymphs) | Various spp. | Vegetables, fruits |
Recommended Crops
Application Guide
Always wear protective gloves, mask, and eye protection during application. Avoid spraying in windy or rainy conditions. Keep children and animals away during and after application. Store in original sealed container in a cool, dry place away from food and feed.
Frequently Asked Questions
What is Cora King?
Cora King is a insecticide / igr from Panchkhal Beej Bhandar containing Diflubenzuron 20% SC. Insect growth regulator for selective, sustainable pest management. It is PQPMC registered and officially imported.
Where can I buy Cora King in Nepal?
Cora King is available through Panchkhal Beej Bhandar's network of 150+ authorized dealers across all 7 provinces of Nepal. Use our Find a Dealer page or call 011-499299 to locate your nearest stockist.
What is the correct dosage for Cora King?
The recommended dosage for Cora King is 1.5–2 ml per liter of water. Apply when young larvae (1st–2nd instar) are present. Early application is key — IGRs are less effective against older larvae. For personalized guidance specific to your crop and region, contact 011-499299.
Is Cora King safe to use?
Yes — Cora King is PQPMC registered and officially imported through authorized channels. Always read the product label before use, follow recommended dosages, and wear appropriate protective equipment. Keep out of reach of children.
How should I store Cora King?
Store in a cool, dry place away from direct sunlight, heat, and moisture. Keep in the original sealed container away from food, feed, and children. Shelf life is typically 2–3 years when stored correctly.