Pirinex 480 EC

Core Mechanism and Formulation

Pirinex 480 EC, produced by F. Makhteshim Chemical Works, is a phosphorus-organic insecticide and acaricide containing 480 g/L of chlorpyrifos. Its primary mode of action is the inhibition of acetylcholinesterase, a critical enzyme for the nervous system of insects. This physiological interference leads to rapid paralysis and subsequent mortality, making it a robust choice for heavy pest infestations.

Why Emulsifiable Concentrate (EC) Matters

The product is formulated as an emulsifiable concentrate, which is technically essential for ensuring high-quality coverage. The EC formulation provides excellent wetting properties, allowing the active ingredient to penetrate the waxy cuticle of plant leaves and the chitinous exoskeleton of pests. Its lipophilic nature ensures prolonged residual activity, which is vital for crops like wheat, potatoes, and sugar beets.

Field Application and Technical Data

• Key Crops: Winter and spring wheat, apple trees, fodder beet, potatoes.
• Target Pests: Cutworms, wireworms, flea beetles, Colorado potato beetle, wheat beetle, sunn pest, leaf rollers, and codling moths.
• Application Rate: 0.5–2.0 L/ha, with a maximum of 1-2 applications per season.

Technically, Pirinex 480 EC offers a balance between immediate contact kill and systemic residual protection. This dual-action approach is particularly effective against soil-dwelling pests like wireworms and foliage pests. Manufactured in Israel by F. Makhteshim Chemical Works, the stability of this formulation prevents sedimentation in sprayer tanks, ensuring uniform distribution during the spraying process. Users should observe the pre-harvest interval of 20–40 days to ensure crop safety and compliance with agricultural standards.