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Chlorpyrifos 20% EC Insecticide is an organophosphate-based pesticide formulated at 20% active ingredient concentration in an emulsifiable concentrate (EC) carrier. The active compound, chlorpyrifos, disrupts the nervous system of target insects by inhibiting the enzyme acetylcholinesterase (AChE), which leads to neuromuscular dysfunction and rapid insect death.

Unlike many modern synthetic pyrethroids or neonicotinoids, chlorpyrifos provides both contact activity (kills insects it touches) and stomach activity (kills insects that ingest treated plant material), making it especially versatile against a wide spectrum of agricultural and structural pests. Effective against 200+ insect species including termites, caterpillars, aphids, white grubs, stem borers, and more. Eliminates insects on contact and through ingestion, with residual soil activity lasting weeks.

Chlorpyrifos for Termite Control

One of the most critical applications of Chlorpyrifos 20% EC is in termite (white ant) management — both in agriculture and in pre-construction structural treatment. Subterranean termites cause billions of dollars in crop and property damage annually.

Chlorpyrifos creates a chemical barrier in the soil when used as a pre-construction treatment, preventing subterranean termite colonies from tunneling into structures. Its long soil persistence ensures months of protection. For active termite infestations in agricultural fields (sugarcane root zone, wood-based plantations), soil drenching with diluted Chlorpyrifos 20% EC is highly effective.

Q1. What is Chlorpyrifos 20% EC used for?

Chlorpyrifos 20% EC is used to control a wide range of insect pests in crops like rice, cotton, vegetables, sugarcane, and maize. It is also used for termite control in soil and pre-construction treatment of buildings.

Q2. How do you dilute Chlorpyrifos 20% EC?

For general foliar application, mix 1.5 to 2.5 ml of Chlorpyrifos 20% EC per liter of water. For soil drenching, use 2–4 liters per acre in 200–400 liters of water. Always follow the product label instructions.

Q3. Is Chlorpyrifos 20% EC safe for crops?

Yes, when used at the recommended dosage, Chlorpyrifos 20% EC is safe for most crops. Avoid over-application as this may cause phytotoxicity. Observe the specified pre-harvest interval (PHI) before harvesting treated crops.

Q4. What pests does Chlorpyrifos 20% EC control?

It controls stem borers, leaf folders, bollworms, aphids, whitefly, caterpillars, cutworms, white grubs, termites, mealybugs, and many other chewing and sucking insect pests.

Q5. Where can I buy Chlorpyrifos 20% EC Insecticide?

Chlorpyrifos 20% EC is available from licensed agrochemical dealers, agricultural input stores, and reputable online agri-input platforms. Bulk pricing is often available for large orders.

Q6. What is the shelf life of Chlorpyrifos 20% EC?

The shelf life is typically 2 years from the date of manufacture when stored in a sealed container under recommended storage conditions (cool, dry, away from direct sunlight).