Bayer Lesenta Insecticide: A Complete Guide for Farmers

Introduction of Bayer Lesenta Insecticide
Bayer Lesenta is a powerful, dual-action insecticide designed to help farmers combat a broad range of sucking and soil pests that damage key crops like sugarcane, cotton, and groundnut. This product from Bayer CropScience combines two potent active ingredients to provide systemic and contact action—ensuring stronger pest control and healthier crop growth.
Table of Contents
What Is Bayer Lesenta?
Bayer Lesenta is a ready-to-use insecticide formulated as water-dispersible granules (WG). It is specifically developed to control chronic pest problems that significantly reduce crop yields. The combination of two active ingredients gives it enhanced effectiveness and makes it suitable for multiple pest-control scenarios.
Technical Name & Active Ingredients
The technical name or composition of Bayer Lesenta is:
Imidacloprid 40% + Fipronil 40% WG (80 WG) – This blend offers a dual mode of action:
- Imidacloprid provides systemic control by interfering with insect nerve signal transmission.
- Fipronil delivers contact and ingestion toxicity, disrupting nerve impulses of pests.
Bayer Lesenta Content / Chemical Composition
Each packet of Lesenta contains:
Imidacloprid – 40% w/w
Fipronil – 40% w/w
Water-dispersible granule formulation (WG)
This combination provides effective control of pests such as white grubs, jassids, thrips, aphids, and other key insects.
Also Read: What is Exponus insecticide?
Bayer Lesenta Uses in Agriculture

Lesenta is used to protect crops against a wide range of pests:
Primary Crops & Target Pests
- Sugarcane: White grubs (soil-dwelling larvae)
- Groundnut: White grubs
- Cotton: Jassids and thrips
- Chilli: White grubs and termites
- Other crops: Effective against aphids, whiteflies, caterpillars, root weevils, and cutworms in some regions (consult local recommendations).
It can be applied as a foliar spray, soil drench, or seed treatment (depending on the crop and pest). Always follow the label for the correct method.
Recommended Dosage (Per Acre & Per Litre)
Bayer Lesenta is effective even at low doses when applied correctly. Below are general guidelines based on common crop requirements (always check the product label for exact instructions and safety measures):
Dose Per Acre (Typical Use)
| Crop | Target Pest | Dosage (g/acre) | Water (Approx.) | Waiting Period |
| Sugarcane | White grubs | 175–200 g | 400–500 L | ~296 days |
| Groundnut | White grubs | 100–120 g | 400 L | ~106 days |
| Cotton | Jassids, Thrips | ~50–125 g | 200 L | ~36 days |
| Chilli | Grubs, Termites | ~200 g | 400 L | ~3 days |
Bayer Lesenta Dose Per Litre of Water
To prepare solution for spraying:
A common foliar spray concentration is around 1 g per litre of water (which means 1 gm Lesenta mixed in 1 L water).
This concentration ensures good coverage for sucking pests when sprayed evenly over the crop canopy.
In a standard 15 L pump sprayer, this translates to about 15 g per pump — but always adjust based on crop size, water volume, and pest severity.
Also Read: Bayer Nativo Fungicide: A Powerful Solution for Crop Protection
Benefits of Bayer Lesenta Insecticide
Using Bayer Lesenta offers multiple advantages to farmers:
1. Dual Mode of Action
Lesenta’s combination of systemic (Imidacloprid) and contact/ingestion (Fipronil) action means more complete pest control.
2. Effective Against Multiple Pests
Controls both soil-dwelling pests (like white grubs) and foliar pests (like jassids and thrips), reducing crop damage across growth stages.
3. Extended Residual Protection
Once applied, Lesenta remains active longer than many single-ingredient products, lowering the frequency of spray applications needed.
4. Growth Promotion Effects
Farmers often observe improved plant vigor, root development, and greener crops, which can contribute to higher yields.
5. Cost-Effective Pest Management
Provides broad pest control in one product, reducing the need to purchase multiple insecticides.
Also Read: Bayer EverGol® Xtend — advanced seed-treatment fungicide (≈800 words)
Safety & Precautions
While Lesenta is highly effective, it must be used responsibly:
⚠ Highly toxic insecticide — always wear protective gear (gloves, masks, goggles) when mixing and spraying.
⚠ Avoid spraying during bloom periods to protect pollinators like bees.
⚠ Avoid contamination of water bodies — harmful to aquatic invertebrates.
⚠ Follow all label directions, local regulations, and post-application waiting periods before harvest.
Summary
Bayer Lesenta is a modern, dual-action insecticide ideal for controlling a range of pests across key crops such as sugarcane, cotton, and groundnut. With its combination of Imidacloprid 40% + Fipronil 40% WG, this product provides systemic and contact pest control, extended protection, and growth-promoting benefits that help improve crop health and yield.
For best results, always apply Lesenta according to the crop label instructions and consult with an agronomist or local agricultural extension service for region-specific guidance.
Also Read: About Lesenta Insecticide on the BAYER Site







