Indoxibria

Indoxibria is an oxadiazine insecticide based on indoxacarb, and it works by a route unlike anything else in the range: the molecule applied to the crop is only weakly active, and it is the larva's own enzymes that convert it into the potent form once ingested. That bioactivation step is why it is hard on caterpillars and comparatively gentle on many beneficial insects, and why it remains effective where pyrethroid and organophosphate resistance has developed.

Características

• —Bioactivated by the target larva — selective toward many beneficials
• —Strong on the key Lepidoptera: grape moth, codling moth, cotton bollworm, corn borer
• —IRAC Group 22A — no cross-resistance with Groups 1B, 3A, 4A or 28
• —Feeding stops rapidly; larvae become paralysed and drop from the plant
• —Registered on grapevine, cotton, hazelnut, apple, tomato and corn
• —Low rates: 25-45 ml/ha or 25-35 ml/100 L water

Cómo actúa

Once inside the larva, esterase and amidase enzymes remove a carbomethoxy group and convert indoxacarb into its active metabolite. That metabolite blocks the voltage-gated sodium channel in the closed state — the opposite of how pyrethroids act — so the nerve cannot fire at all. Feeding ceases, the larva becomes paralysed and dies. IRAC Group 22A.