Target Pests
Katyayani Bt Bio Larvicide is effective against various larval pests such as:

• Tobacco caterpillar, corn borer, stem borer, fruit borer, pod borer, shoot borer, rice leaf roller, leaf-eating caterpillar, cotton bollworm, and cotton bridgeworm

• Tea caterpillar, tea looper, pine caterpillars, and spiny moths

• Pests from groups such as Lepidoptera, Hymenoptera, Diptera, and Coleoptera

Target Crops
Suitable for a wide variety of crops including:

• Cotton, paddy, cabbage, chickpea, okra, tomato, cauliflower, chilli, gram, pigeon pea, soybean, tobacco, castor, red gram, teak, and many others

Mode of Action
Katyayani Bt Bio Larvicide plays a vital role in pest management, especially in organic farming. It works through the following steps:

1. Spore Ingestion – Insect larvae ingest Bt spores along with treated plant material.

2. Spore Activation – The spores dissolve in the larva’s alkaline midgut, releasing protein crystals.

3. Protoxin Activation – The crystals are broken down by gut enzymes into active toxins (Cry toxins).

4. Binding to Gut Cells – These toxins bind to specific receptors in the midgut lining.

5. Pore Formation – The toxins form pores in the gut cell membranes.

6. Cell Lysis – The damage leads to cell rupture.

7. Larval Death – This disrupts digestion, causing starvation and death.

Application and Dosage

• Method: Apply by spraying directly on the crops.

• Dosage: Use 1–2 kg per acre.

Precautions

• Apply 2–3 days earlier than chemical pesticides for best results on young larvae.

• Ideal application temperature is above 18°C.

• Evening application is preferred for maximum effectiveness.

• Spraying at temperatures above 30°C yields the best results.

• Repeat application every 10–15 days for continuous pest control.