Katyayani Bt Bio Larvicide Powder Bio Insecticide

Katyayani Bt Bio Larvicide Powder Bio Insecticide

Katyayani Bt Bio Larvicide is a bio-insecticide containing Bacillus thuringiensis in powder formulation. It effectively controls a wide range of insect larval pests through stomach (ingestion) action by disrupting the gut of insect larvae, rupturing internal tissue, stopping insect feeding, and ultimately causing pest death.

Active Ingredient

• Bacillus thuringiensis

Target Pests of Bt Bio Larvicide

Bt Bio Larvicide powder is suitable for larval pests such as Tobacco Caterpillar, Corn Borer, Stem Borer, Fruit Borer, Pod Borer, Shoot Borer, Rice Leaf Roller, Leaf-Eating Caterpillar, Cotton Bollworm, Cotton Bridgeworm, Tea Caterpillar, and pests belonging to the Lepidoptera, Hymenoptera, Diptera, and Coleoptera groups, such as tea loopers, pine caterpillars, and spiny moths.

Target Crops of Bt Bio Larvicide

Bt Bio Larvicide is suitable for various crops, including Cotton, Paddy, Cabbage, Chickpea, Okra, Tomato, Cauliflower, Chilli, Gram, Pigeon Pea, Soybean, Tobacco, Castor, Teak, Red Gram, and many other crops.

Mode of Action of Bt Bio Larvicide

Bt Bio Larvicide plays an important role in plant pest control as well as in organic agriculture. Bacillus thuringiensis mainly targets larval pests through the following process:

• Spore Ingestion: Bt exists in the environment as spores. When insect larvae ingest plant material containing Bt spores, they ingest the spores along with it.
• Spore Activation: The alkaline pH (high pH) in the insect's midgut dissolves the Bt spores, releasing the protein crystals.
• Protoxin Activation: The insect's gut enzymes cleave the protein crystals into smaller protoxins. In their active state, these are called Bt toxins or Cry toxins.
• Binding to Midgut Cells: Bt toxins bind to specific receptors on the midgut epithelial cells of susceptible insects.
• Pore Formation: Binding triggers the toxins to insert themselves into the cell membrane of the midgut cells, forming pores.
• Cell Lysis: These pores disrupt the midgut cell membrane, causing the cells to lyse (burst).
• Death of Insect: Lysis of midgut cells disrupts the insect's digestive system, leading to starvation and ultimately the death of the insect larvae.

Application and Dosage of Bacillus thuringiensis

• Application Method: Spraying in the crop field.
• Dosage: 1–2 kg per acre.

Precautions of Bt Bio Larvicide

• The application period is generally 2 to 3 days earlier than the use of chemical pesticides, which has a good effect on the young larvae of pests.
• The temperature when using Bacillus thuringiensis should be above 18°C, and it should be applied in the evening to achieve its best insecticidal effect. The effect of spraying above 30°C is the best.
• Apply Bt larvicide every 10–15 days for continued control.

Disclaimer: The information provided above is for general reference purposes only. Always read and follow the official product label before use.