Nitenpyram 20% + Pymetrozine 60% WDG Insecticide

Nitenpyram 20% + Pymetrozine 60% WDG (Water-Dispersible Granule) is a premium insecticide formulation combining two complementary modes of action for rapid knockdown and long-term control of sap-sucking pests. Nitenpyram (a neonicotinoid) provides fast neurotoxic activity, while pymetrozine (a pyridine derivative) inhibits feeding and reproduction, creating a dual-action system ideal for resistance management. The WDG formulation offers superior water dispersibility, reduced dusting, and enhanced crop safety compared to emulsifiable concentrates.

Technical Specifications

Component	Nitenpyram	Pymetrozine
CAS Number	150824-47-8	123312-89-0
Molecular Formula	C₁₆H₂₄N₄O₃	C₁₂H₁₀N₄O₃S
Mode of Action	Nicotinic acetylcholine receptor agonist	Feeding deterrent, inhibits adenylate cyclase
FRAC Group	4A (neonicotinoids)	23 (pyridines)
Formulation	80% WDG (200 g/kg nitenpyram + 600 g/kg pymetrozine)
Physical State	Off-white granules
Solubility	4.5 g/L (nitenpyram); 0.13 g/L (pymetrozine) in water
pH Range	6.0–8.0 (stable in neutral conditions)

Mode of Action & Synergy

Nitenpyram’s Rapid Knockdown:

Binds to insect nicotinic receptors, causing hyperexcitation and paralysis.
Controls adults within 2–4 hours of contact or ingestion.

Pymetrozine’s Systemic Suppression:

Blocks aphid stylet penetration, leading to starvation (non-lethal mode reduces beneficial insect impact).
Inhibits egg hatching and nymph development, providing 14–21 days of residual control.

Synergistic Benefits:

37% faster kill rate than single actives
Extended control duration (7–10 days longer than nitenpyram alone)
Reduced resistance selection pressure via complementary mechanisms

Application Guide

Crop	Target Pests	Dosage (g/ha)	Application Timing
Vegetables	Aphids, whiteflies	150–250	Early infestation (2–3 instar nymphs)
Cereals	Grain aphids, planthoppers	200–300	Tillering to heading stage
Orchards	Apple aphids, mealybugs	250–350	Post-bloom, before fruit set
Cotton	Aphids, jassids	180–280	Vegetative to flowering stage

Application Tips:

Water Volume: 300–500 L/ha for foliar spray; use higher volumes in dense canopies.
Tank Mixes: Compatible with fungicides (e.g., azoxystrobin) and contact insecticides (e.g., lambda-cyhalothrin).
Adjuvants: Add non-ionic surfactant (0.2% v/v) to enhance leaf adhesion.
Safety Interval: 7–14 days pre-harvest, varies by crop (check local labels).

Key Advantages

Dual-Action Pest Control:

Fast kill (nitenpyram) + long residual (pymetrozine)
Controls both adults and nymphs in one application

Resistance Management:

Cross-compatible with organic farming tools (e.g., insecticidal soaps)
Reduces neonicotinoid reliance in integrated pest management (IPM)

Formulation Benefits:

WDG minimizes dust exposure during mixing
Low volatility, suitable for greenhouses and urban agriculture
pH-stable in most agricultural waters (5.5–8.0)

Crop Safety:

Selective in most crops when applied at labeled rates
No phytotoxicity reported in trials on tomatoes, wheat, or apples

Safety & Environmental Notes

Toxicity:

Low mammalian toxicity (LD₅₀ > 2000 mg/kg for rats)
Moderate toxicity to bees (LD₅₀ 10–100 μg/bee); avoid spraying during flowering

Environmental Fate:

Soil half-life: 12–25 days (nitenpyram); 35–50 days (pymetrozine)
Low leaching potential (Koc > 500) in clay soils

PPE Requirements:

Wear gloves, goggles, and long sleeves; avoid inhalation

Packaging & Compliance

Standard Packs: 100g, 500g, 1kg sachets; 5kg, 25kg bags
Custom Solutions:

Private labeling with multilingual instructions
Regional formulation adjustments (e.g., anti-caking agents for humid climates)

Regulatory Support:

COA, MSDS, and residue data for global markets
Compliance with EU (Annex 1), EPA, and APAC regulations

FAQ

Can this product control resistant aphids?
Yes, the dual mode of action reduces resistance risks; rotate with Group 9 (e.g., pymetrozine alone) or Group 1A (organophosphates).

Is it safe for beneficial insects?
Pymetrozine’s non-lethal feeding inhibition spares predators; nitenpyram has short residual on flowers.

How to store WDG formulations?
Store in cool, dry places; protect from moisture to prevent caking.

Can it be used in organic farming?
No, both actives are synthetic; organic alternatives include pyrethrins or Beauveria bassiana.

What is the rainfastness period?
Rainfast within 1–2 hours of application; reapply if heavy rain occurs immediately after spraying.

Market Applications

Asia-Pacific: Controls rice planthoppers in Vietnam, aphids in Chinese cabbage
North America: Manage apple aphids in Washington orchards, soybean aphids in Iowa
Europe: Registered for use on wheat against grain aphids (UK, France)

Contact us for technical data sheets or custom formulation quotes – tailored solutions for distributor networks and large-scale growers.