Bendiocarb: A Broad-Spectrum Carbamate Insecticide
Technical Introduction
Bendiocarb (IUPAC: 2,2-dimethyl-1,3-benzodioxol-4-yl methylcarbamate) is a carbamate insecticide widely used to control chewing and sucking insect pests in agriculture and public health. It works by inhibiting acetylcholinesterase (AChE) in insects, leading to overstimulation of the nervous system and death.
Mode of Action: Carbamate acetylcholinesterase inhibitor (IRAC Group 1A).
Systemicity: Contact and stomach action; not systemic.
Target Spectrum: Effective against mosquitoes, flies, cockroaches, aphids, leafhoppers, and caterpillars.
Applications
Public Health:
Used for mosquito and fly control in vector management programs.
Field Crops:
Controls pests on rice, cotton, vegetables, and fruits.
Stored Products:
Protects stored grains from beetles and other pests.
Ornamentals & Greenhouses:
Effective against aphids, whiteflies, thrips, and caterpillars in greenhouse crops.
Advantages
Broad-Spectrum Control: Effective against a wide variety of chewing and sucking pests.
Rapid Knockdown: Provides quick reduction in pest populations.
Flexible Formulations: Available as wettable powders, granules, and emulsifiable concentrates.
Cost-Effective: Proven efficacy at low to moderate application rates.
Public Health Utility: Useful in vector and household pest control.
Specifications (Typical Parameters)
| Parameter | Description | Typical Value |
|---|---|---|
| Chemical Name | Bendiocarb | |
| Chemical Class | Carbamate insecticide (IRAC 1A) | |
| Chemical Formula | C₁₂H₁₅NO₃ | |
| Molecular Weight | ~201.3 g/mol | |
| Appearance | Yellow to brown crystalline powder or granules | |
| Purity (TC) | ≥ 95% | |
| Common Formulations | Wettable powder (WP), emulsifiable concentrate (EC), granules (GR) | 75% WP, 50% GR, 50% EC |
| Mode of Action | Acetylcholinesterase inhibitor; contact and stomach action | |
| Target Pests | Mosquitoes, flies, cockroaches, aphids, leafhoppers, caterpillars | |
| Residual Activity | 1–3 weeks depending on crop and environment | |
| Toxicity | Moderate mammalian toxicity (oral LD₅₀ in rats ~85–200 mg/kg); toxic to bees if directly sprayed |
FAQ
Q1: How does Bendiocarb work?
A: It inhibits acetylcholinesterase, causing continuous nerve firing, paralysis, and death in target insects.
Q2: Is Bendiocarb systemic?
A: No. It is contact and stomach active but not systemic.
Q3: Can Bendiocarb be used for mosquito control?
A: Yes. It is widely used in public health programs for adult mosquito and larval control.
Q4: Is Bendiocarb safe for beneficial insects?
A: It can be toxic to bees if sprayed directly. Avoid application during flowering and follow label instructions.
Q5: Can Bendiocarb be integrated into IPM programs?
A: Yes. Its broad-spectrum activity and short residual life make it suitable for rotation with other insecticides in integrated pest management.
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