Prexio^® Active Insecticide
Rice Crops

Prexio^® Active is a new insecticide active ingredient designed specifically to manage all four rice hopper pest species – the brown planthopper, white-backed planthopper, small brown planthopper and rice green leafhopper.

Prexio is not yet registered or available for use. Prexio is expected to launch in select Asia Pacific countries starting in 2025. Timelines are subject to regulatory approval. Prexio may not be registered for use in all countries.

Prexio is a mesoionic molecule which targets the nicotinic acetylcholine receptors (nAChRs), inhibiting neurotransmission in insects. Prexio is classified as Group 4E by the Insecticide Resistance Action Committee (IRAC). Target pests’ exposure to Prexio leads to paralysis and feeding cessation. Unlike insecticides that cause hyperexcitation, Prexio prevents nerve stimulation, which also effectively controls insect pests.

The physico-chemical properties of Prexio enable plant systemicity, ensuring more complete plant coverage, improved rainfastness and longer residual activity. Extensive studies by BASF have demonstrated that the proposed uses of Prexio have a favorable ecotoxicology and sustainability profile when applied according to label instructions. Prexio demonstrates consistent field performance, supported by studies showing the absence of cross-resistances with insecticide-resistant rice planthopper populations.

Prexio Active at-a-glance