English
Chlorpyrifos is a non-systemic, broad-spectrum organophosphate insecticide utilized for the management of a diverse array of pests in both agricultural and non-agricultural settings. The active ingredient functions through the inhibition of acetylcholinesterase, delivering contact, stomach, and vapor action against numerous chewing and sucking insect species. Red Sun supplies high-quality chlorpyrifos technical and formulated products that are applied globally for crop protection and structural pest control.
Chlorpyrifos provides effective control against a broad spectrum of pests, including termites, mosquitoes, and various agricultural insect species.
The active ingredient is applied to major crops such as rice, corn, and cotton, contributing to crop health and yield protection.
Multiple formulation options, including Chlorpyrifos 97% TC, 40% EC, and 480 g/L EC, allow for adaptable application methods.
Beyond agriculture, chlorpyrifos is employed on golf courses, wood structures, utility poles, and in food processing plants.
Strict adherence to the product label and safety protocols, including the use of personal protective equipment, is essential for responsible application.
Regulatory status varies significantly by region, and users must verify and comply with all local legislation regarding permitted uses.
Chlorpyrifos is utilized to protect a variety of crops from soil-dwelling and foliar pests. It is noted for its rapid action and efficacy against a comprehensive range of insect taxa. Application is conducted via soil incorporation or foliar spraying, enabling the management of pests both below and above ground. The following table summarizes crop types and the benefits derived from chlorpyrifos use:
Crop Type | Benefit from Chlorpyrifos Use |
|---|---|
Rice | Effective pest control |
Corn | Protection from key insect pests |
Soybeans | Effective pest control |
Fruit Trees | Effective pest control |
Nut Trees | Effective pest control |
Asparagus | Specific use allowances |
Alfalfa | Specific use allowances |
Apples | Specific use allowances |
Sugarbeets | Specific use allowances |
Chlorpyrifos is applied on rice, corn, and soybeans to manage pests such as aphids, cutworms, and rootworms. In cotton, it targets leafhoppers and armyworms. The availability of Chlorpyrifos 97% TC, 40% EC, and 480 g/L EC provides formulators and applicators with flexible options for various crop and pest scenarios. Documented field trials, such as those in New York State on fruit trees for black stem borer control, have demonstrated reduced damage and improved tree vigor. The active ingredient is compatible with integrated pest management (IPM) programs and can be used in rotation with other modes of action to mitigate resistance development.
The utility of chlorpyrifos extends to numerous non-crop markets. Documented use sites include:
Christmas tree plantations
Commercial ornamental production
Commercial sod farms
Food processing plants
Golf courses
Public health mosquito control programs
Turf and ornamentals on road medians and industrial sites
Warehouses
Additionally, chlorpyrifos is applied to protect stored grain from insect infestation and to control termites and cockroaches in and around structures. It is also used in greenhouses and on golf course turf. The active ingredient effectively manages both chewing and sucking pests, including aphids, whiteflies, cutworms, rootworms, and termites, and is registered for use in numerous countries across millions of hectares annually.
Red Sun’s chlorpyrifos formulations are registered for use on a wide array of crops. Key examples are provided in the table below:
Crop Type | Application Example |
|---|---|
Corn | Control of rootworms and cutworms |
Cotton | Control of leafhoppers and armyworms |
Soybeans | Control of aphids and beetles |
Peanuts | Management of subterranean pests |
Fruit Trees | Protection of apples, citrus, and other pome/stone fruit |
Nut Trees | Application on almonds and walnuts |
Vegetables | Use on brassica crops such as broccoli and cauliflower |
Sugar Beets | Soil and foliar pest treatment |
Rice | Targeted control of stem borers |
Formulation options of Chlorpyrifos 97% TC, 40% EC, and 480 g/L EC are available to suit specific crop and pest requirements.
Note: Application on cucurbits, lettuce seedlings, and tobacco should be avoided due to the risk of phytotoxicity.
Chlorpyrifos delivers reliable control of a broad spectrum of economically important pests across agricultural and structural settings. Key target organisms include:
Aphids (Aphididae)
Armyworms (Spodoptera spp.)
Cutworms (Agrotis spp.)
Rootworms (Diabrotica spp.)
Leafhoppers (Cicadellidae)
Whiteflies (Aleyrodidae)
Termites (Isoptera)
Cockroaches (Blattodea)
Poultry bed bugs (Cimex lectularius, with documented 96% efficacy)
Mosquitoes (Culicidae)
The fast-acting nature of chlorpyrifos contributes to rapid pest population reduction. Documented field use over several decades indicates no widespread development of practical resistance, reinforcing its reliability compared to some newer chemistry classes.
Red Sun offers chlorpyrifos in distinct technical and formulation grades to suit diverse manufacturing and field requirements. The primary product forms are detailed below:
Product Name | Description | Common Use Example |
|---|---|---|
Chlorpyrifos 97% TC | Technical concentrate of high purity | Manufacturing of end-use formulations |
Chlorpyrifos 40% EC | Emulsifiable concentrate, miscible with water | Foliar and soil-directed spray applications |
Chlorpyrifos 480 g/L EC | High-concentration liquid emulsifiable concentrate | Broad-acre field crop applications |
Chlorpyrifos 97% TC is intended for industrial formulators, while the 40% EC and 480 g/L EC are ready-to-use products for agricultural professionals. These formulations are designed for use on crops such as rice, cotton, and peanuts.
Application techniques are selected based on the target crop, pest complex, and local agricultural practices. A summary of application settings and methods is provided below:
Setting | Application Method |
|---|---|
Agricultural | Foliar broadcast or directed spraying; soil incorporation for crops including soybeans, fruit trees, and rice |
Non-Agricultural | Targeted treatments for termites, ants, and other structural or stored-product pests |
Turf Management | Specialized spray application on golf courses and managed turf |
Compliance with the complete label directions for Red Sun chlorpyrifos products is mandatory to ensure optimum efficacy and operator safety. Tank-mixing with other registered pesticides is permitted where supported by label instructions, allowing for broader pest spectrum management in a single pass. A restricted-entry interval (REI) of at least 24 hours is required before re-entering treated areas to protect human health.
The regulatory landscape for chlorpyrifos is complex and jurisdiction-dependent. A summary of the legal status in key markets is provided below:
Region | Legal Status |
|---|---|
United States | Food-use tolerances revoked by the EPA; the revocation was vacated by the 8th Circuit Court of Appeals in 2023, resulting in ongoing litigation and an uncertain regulatory status. All residential uses have been prohibited since 2000. |
European Union | Approval for agricultural use not renewed. |
China | Regulatory status not fully harmonized; indications of continued manufacturing and registered agricultural use persist. |
The U.S. Environmental Protection Agency (EPA) previously established that no detectable residues of chlorpyrifos are permitted on food commodities. Several U.S. states, including California, have enacted independent restrictions. It is the responsibility of the applicator to ascertain and adhere to all national, regional, and local regulations before using any organophosphate product.
The use of chlorpyrifos requires rigorous adherence to established safety protocols. The product label must be read and followed in its entirety. The EPA and comparable regulatory bodies mandate the use of personal protective equipment (PPE), which typically includes chemical-resistant gloves, coveralls, and a respirator. A significant proportion of reported incidents are linked to inadequate PPE use. Additional protective gear, such as goggles and protective footwear, is recommended to prevent ocular and dermal exposure. A strict re-entry interval of no less than 24 hours must be observed for treated areas.
Chlorpyrifos is a neurotoxic substance that can adversely affect the nervous system upon inhalation or dermal absorption. Epidemiological and toxicological studies indicate that children and agricultural workers constitute high-risk populations. Environmental precautions are essential to prevent contamination of surface water, as the compound exhibits high toxicity to aquatic organisms, including fish, and may affect non-target and protected species. All chlorpyrifos products must be stored and disposed of in accordance with local regulations on pesticide waste management.
Red Sun chlorpyrifos products are registered for use on a diverse range of crops, including corn, cotton, soybeans, peanuts, fruit trees, and various vegetables. Specific use patterns for rice and cotton are widely adopted in applicable agricultural systems.
Application is performed as a foliar spray or a soil-directed treatment, depending on the target pest and crop. Chlorpyrifos 97% TC is an industrial-grade material used for manufacturing formulations, whereas Chlorpyrifos 40% EC and Chlorpyrifos 480 g/L EC are end-use products designed for field deployment after dilution.
The product is effective against a broad spectrum of pests, including aphids, armyworms, cutworms, rootworms, leafhoppers, termites, and mosquitoes. Its mode of action ensures rapid knockdown and sustained crop protection.
When handled in strict accordance with the label instructions and with mandated personal protective equipment, the product can be used as part of a responsible pest management program. Observance of the 24-hour restricted-entry interval is essential to safeguard human health.
Tank-mixing is permitted where explicitly supported by the product label. This practice can form part of a broader integrated pest management (IPM) and resistance management strategy.
Established in 1989, the company has evolved from the Nanjing Pesticide Factory into an international agrochemical enterprise serving over 100 countries.
CONTACT
Tel: +86 025-57880888
E-mail: wgp@nj-redsun.cn
Address: No. 18 Gutan Avenue, Gaochun Economic Development Zone, Nanjing City, Jiangsu Province, China
