Bifenthrin
Bifenthrin: The Professional Insecticide Solution
Bifenthrin is a highly effective synthetic pyrethroid insecticide widely used in agricultural, residential, and commercial applications. This powerful active ingredient provides long-lasting control against a broad spectrum of pests while being relatively safer for mammals than many alternative insecticides.
Key Technical Specifications:
- Chemical Name: 2-methylbiphenyl-3-ylmethyl (Z)-(1RS,3RS)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxylate
- CAS Number: 82657-04-3
- Molecular Formula: C23H22ClF3O2
- Appearance: White to tan waxy solid
- Odor: Slightly sweet
- Solubility: Water: 0.1 mg/L (20°C); soluble in most organic solvents
Product Formulations Available:
| Formulation Type | Concentration | Application Method | Target Pests |
|---|---|---|---|
| Emulsifiable Concentrate (EC) | 10-25% | Spray | Crop pests, termites |
| Wettable Powder (WP) | 7.5-10% | Spray | Agricultural pests |
| Granules (GR) | 0.1-0.5% | Broadcast | Lawn insects, fire ants |
| Dust (DU) | 0.1-1% | Direct application | Crack and crevice treatments |
Performance Characteristics of Bifenthrin:
- Provides rapid knockdown of target insects
- Offers residual control for 30-90 days depending on formulation and environment
- Exhibits both contact and stomach poison activity
- Effective against pyrethroid-resistant insect populations
- Low mammalian toxicity (EPA Toxicity Class II or III)
Bifenthrin Effectiveness Against Common Pests:
| Pest Type | Effectiveness Rating | Time to Knockdown | Residual Control |
|---|---|---|---|
| Termites | Excellent | 24-48 hours | 3-6 months |
| Cockroaches | Excellent | 2-4 hours | 4-8 weeks |
| Ants | Very Good | 1-3 hours | 4-6 weeks |
| Mosquitoes | Good | 15-30 minutes | 2-4 weeks |
Bifenthrin Frequently Asked Questions
What makes Bifenthrin different from other pyrethroid insecticides?
Bifenthrin stands out for its unique combination of properties including photostability (resistance to sunlight degradation), long residual activity, and effectiveness against both lepidopteran and non-lepidopteran pests. Unlike some other pyrethroids, Bifenthrin maintains efficacy in high temperature conditions and shows lower potential for insect resistance development.
How long does Bifenthrin remain effective after application?
The residual effectiveness of Bifenthrin varies by formulation and environmental conditions. Typically, it provides control for 4-8 weeks outdoors and up to 3 months indoors. Granular formulations in soil can remain effective for 2-4 months against subterranean termites. Factors affecting longevity include sunlight exposure, temperature, and surface type (porous surfaces retain Bifenthrin longer).
Is Bifenthrin safe for use around pets and children?
When used according to label directions, Bifenthrin has a good safety profile. However, like all pesticides, precautions should be taken. Keep pets and children away during application until the product has dried (typically 2-4 hours). The EPA has classified Bifenthrin as a Group C (possible human) carcinogen only at very high doses not encountered in normal use scenarios.
Application Guidelines:
- Agricultural Use: 2.5-6.0 oz per acre depending on crop and pest
- Structural Pest Control: 0.06-0.12% dilution for most applications
- Lawn Care: 0.5-1.5 lbs of granular product per 1000 sq ft
- Maximum Application Rate: Do not exceed 0.5 lb AI/acre per season
Environmental Considerations:
While Bifenthrin has many advantages, it's important to note that it is highly toxic to aquatic organisms. Applications near water bodies require special precautions to prevent runoff. The compound binds strongly to soil particles, reducing leaching potential but increasing persistence in the environment.
Safety and Handling Information:
- Always wear personal protective equipment (PPE) including gloves, long sleeves, and eye protection
- Do not apply during windy conditions or when rain is expected within 24 hours
- Store in original container away from food, feed, and potable water sources
- Dispose of empty containers according to local regulations
Bifenthrin continues to be one of the most versatile and effective insecticides available today. Its balanced profile of efficacy, residual activity, and relative safety makes it a preferred choice for pest management professionals and agricultural users worldwide.