Trade names for products containing lambda cyhalothrin include Charge, Excaliber, Grenade, Hallmark, Icon, Karate, Matador, OMS 0321, PP321, Saber, Samurai and Sentinel (62, 12).
Introduction
Lambda-Cyhalothrin 5% SC. Lambda-cyhalothrin is a synthetic pyrethroid insecticide and acaricide used to control a wide range of pests in a variety of applications. Pests controlled include aphids, Colorado beetles and butterfly larvae. Crops on which Lambda-Cyhalothrin may be applied include cotton, cereals, hops, ornamentals, potatoes, vegetables or others. Lambda-Cyhalothrin may also be used for structural pest management or in public health applications to control insects such as cockroaches, mosquitoes, ticks and flies which may act as disease vectors.
What is Lambda-Cyhalothrin?
• Lambda-Cyhalothrin belongs to a group of chemicals called pyrethroids. Pyrethroids are manmade chemicals that are similar to the natural Insecticides pyrethrins. Scientists developed pyrethroid Insecticides to have properties better than those of the pyrethrins.
• Lambda-Cyhalothrin is similar to the pyrethroid cyhalothrin. Due to their similarity, researchers sometimes use toxicity tests conducted with cyhalothrin to evaluate the toxicity of Lambda-Cyhalothrin.
• Lambda-Cyhalothrin is a colorless to beige solid that has a mild odor. It has a low water solubility and is nonvolatile.
• Signal words for products containing Lambda-Cyhalothrin range from Caution to Danger. The signal word reflects the combined toxicity of Lambda-Cyhalothrin and other ingredients in each product. See the Pesticide Label box above.
| A.I. Content | 5.0%, Min. |
| pH | 5.0-8.0 |
| Appearance | Transparent liquid |
How does Lambda-Cyhalothrin work?
• Pyrethroids, including Lambda-Cyhalothrin, disrupt the normal functioning of the nervous system in an organism. By disrupting the nervous system of insects, Lambda-Cyhalothrin may cause paralysis or death. Temperature influences insect paralysis and the toxicity of Lambda-Cyhalothrin.
• Lambda-Cyhalothrin effects a variety of indoor and outdoor insects when they eat or touch the chemical.
• Lambda-Cyhalothrin has properties that may repel insects.
• Pyrethroids affect the nervous system of an organism. They act by disrupting the gating mechanism of sodium channels that are involved in the generation and conduction of nerve impulses. • Pyrethroids disrupt the sodium channel activation gate by keeping it in the open position. Delayed closing of the gate results in prolonged excitation of nerve fibers.
• Lambda-Cyhalothrin causes rapid paralysis and death to an insect when ingested or exposed externally. Temperature influences insect paralysis and the toxicity of Lambda-Cyhalothrin.
• Lambda-Cyhalothrin has repellent properties.
