Pirimo 500EC

Pirimo 500 EC is a public health insecticide formulated as an emulsifiable concentrate (EC). It contains the active ingredient Pirimiphos-methyl at a concentration of 50%. It has a dual mode of action, working through contact and stomach routes, and is used to control mosquitoes, flies, cockroaches, and mosquito larvae in residential, industrial, and agricultural environments.

Product Features

● Contains 50% Pirimiphos-methyl for high effectiveness.

● Effective against a wide range of pests, including mosquitoes, flies, cockroaches, and mosquito larvae.

● Suitable for several application methods, including surface spraying, thermal fogging, and ultra-low-volume (ULV) spraying, where approved by the product label.

● The website describes it as having a fast and long-lasting effect indoors and outdoors.

● The website states that the product is registered in Saudi Arabia and complies with Ministry of Health specifications.

Technical Specifications

● Trade name: Pirimo 500 EC

● Product type: Public Health Insecticide

● Formulation type: Emulsifiable Concentrate (EC)

● Active ingredient: Pirimiphos-methyl 50%

● Odor: Relatively strong

● Country of origin: Saudi Arabia

● Package size: 1 liter

● Registration number: PHPR-2025-P-0005

How to Use

1. Thermal Fogging for Mosquitoes

The website states:

● Dilute 1 liter of insecticide in 20 liters of diesel.

● Apply at a rate of 40 ml of the prepared solution per 1,000 square meters.

2. Ultra-Low-Volume (ULV) Spraying for Mosquitoes and Flies

The website states:

● Dilute 1 liter of insecticide in 4 liters of diesel.

● Apply at a rate of 40 ml per 1,000 square meters.

3. Surface Spraying

The website lists the following dilution rates:

● Mosquito larvae: 1 liter of insecticide per 100 liters of water. Apply 1 liter of the prepared solution per 1,000 m².

● Flies: 1 liter of insecticide per 100 liters of water. Apply 1 liter of the prepared solution per 1,000 m².

● Cockroaches: 1 liter of insecticide per 100 liters of water. Apply 1 liter of the prepared solution per 1,000 m².

Safety Precautions

● Read and follow the official product label before use.

● Use only for approved pests, application methods, and locations.

● Wear the protective equipment specified on the label.

● Keep children, pets, food, and food-preparation surfaces away from treatment areas.

● Avoid inhaling spray or fog and avoid direct contact with skin and eyes.

● Do not use thermal fogging or ULV application indoors unless explicitly permitted by the label.

● Follow all required ventilation, drying, and re-entry instructions.

Important: The application rates above were transcribed from the website screenshots and have not been independently verified. Confirm them against the official Saudi-approved label before use, especially the diesel dilution rates and the unusually high listed surface-spray concentration.