Pyraxalt active technology and rapid feeding cessation
Pexalon brings a breakthrough mesoionic chemical molecule to wetland rice agriculture, overcoming resistance to older chemistries.
- Contains Triflumezopyrim 10% SC (IRAC Group 4E), acting on a distinct site of nicotinic acetylcholine receptors.
- Causes immediate feeding cessation: Planthoppers stop drawing sap within 60 to 90 minutes of application.
- Controls all life stages: Highly lethal to early and late nymphal instars as well as reproductive adult hoppers.
- Systemic movement: Rapidly translocates through rice tillers to shield inner stem tissues where hoppers congregate.
Hopper burn prevention and optimal application window
Applying Pexalon at the appropriate biological window prevents explosive hopper populations from destroying standing crops.
- Application timing: Apply during the early hopper build-up stage (typically 45 to 60 days after transplanting or when hoppers reach 5 to 10 per hill).
- Hopper burn prevention: Halting feeding early prevents large circular dead patches (hopper burn) that cause extensive lodging.
- Extended residual control: Provides 21 to 25 days of sustained protection, usually requiring only one spray per season.
- Preserves rice grain development and maximizes panicle weight at harvest.
Application methodology, water management, and spray volume
Apply Pexalon using a knapsack sprayer fitted with a hollow cone nozzle, directing the spray pattern toward the lower base of the rice hills. Maintain shallow water in the paddy field during spraying to assist systemic root absorption. Operators should wear standard protective clothing, rubber gloves, and eye protection during spray preparation.
Official source
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Central Insecticides Board and Registration Committee ↗Related on KisanPe
Common questions
What is the primary target pest of Corteva Pexalon in rice?
Pexalon specifically targets brown planthopper (BPH) and whitebacked planthopper (WBPH) in rice crops.
When is the optimal time to spray Pexalon in paddy fields?
Spray at the early nymph emergence stage when scouting detects 5 to 10 planthoppers per hill, before hopper burn patches form.
Does Pexalon control both nymphs and adult planthoppers?
Yes, Pexalon provides comprehensive control across all nymphal instars and adult planthoppers.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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