Cypermethrin 5% EC (Lethal Super): The Complete Insecticide Guide

Introduction

Cypermethrin 5% EC, marketed as Lethal Super, represents a cost-effective pyrethroid insecticide that delivers broad-spectrum pest control with reduced environmental impact. This 800-word expert guide provides farmers with comprehensive technical details about Lethal Super, covering its unique formulation advantages, precise application methods, resistance management strategies, and safety protocols – all presented in original, thoroughly researched content.

Technical Specifications

1. Chemical Profile

Parameter	Specification
Active Ingredient	Cypermethrin (5% w/w)
Chemical Class	Type II synthetic pyrethroid
Isomer Ratio	40:60 cis:trans
Formulation Type	Emulsifiable Concentrate
IRAC MoA Group	3A (Sodium channel modulators)

2. Formulation Advantages

5% concentration balances efficacy with reduced chemical load
Advanced solvent system enhances leaf penetration
UV stabilizers extend field residual life (7-10 days)
Low phytotoxicity profile for most crops

Dual-Action Pest Control Mechanism

1. Neurotoxic Effects

Binds to voltage-gated sodium channels
Causes prolonged neuronal depolarization
Results in knockdown paralysis (2-4 hours)

2. Synaptic Disruption

Inhibits calcium-dependent ATPase
Depletes neurotransmitter reserves
Leads to irreversible nervous system failure

Efficacy Timeline:

15-30 min: Hyperexcitation symptoms
2-4 hrs: Complete knockdown
6-12 hrs: 100% mortality

Target Pest Spectrum

Primary Controlled Pests

Lepidoptera

Helicoverpa armigera (LD₉₀ = 0.25 μg/larva)
Spodoptera litura (90% control at 75 g a.i./ha)

Coleoptera

Epilachna beetle (85% reduction at 50 g a.i./ha)

Diptera

Fruit flies (72h mortality >80% at 0.005%)

Approved Crops & PHI

Crop	Max Apps/Season	PHI (days)
Vegetables	3	7
Cotton	2	15
Maize	2	21
Pulses	1	30

Precision Application Guide

1. Optimal Spray Parameters

Parameter	Recommendation
Droplet Size	200-350 μm
Nozzle Type	Hollow cone (HC-02)
Spray Pressure	25-35 psi
Water Volume	400-500 L/ha

2. Tank Mix Strategies

Synergists: Piperonyl butoxide (1:5 ratio)
Rotation Partners: Emamectin benzoate
Incompatible With: Alkaline solutions (pH>8)

3. Resistance Management

3-Spray Rotation Protocol:

First: Cypermethrin (Group 3A)
Second: Chlorantraniliprole (Group 28)
Third: Spinetoram (Group 5)

Resistance Threshold: >30% survival at diagnostic dose

Dealers: https://dir.indiamart.com/impcat/cypermethrin.html

Safety & Environmental Profile

1. Toxicity Data

Organism	LC₅₀/LD₅₀	Risk Level
Honeybees	0.025 μg/bee	High
Fish	0.45 μg/L	Extreme
Earthworms	>1000 mg/kg	Low

2. Protective Measures

Mandatory PPE:
- Nitrile gloves (0.11mm)
- Face shield + respirator
- Chemical-resistant apron
Environmental:
- 50m aquatic buffers
- Drift-reduction nozzles

Economic Advantages

Cost-Benefit Analysis

Parameter	Value
Cost/ha (average)	$8.50
Yield Protection	25-40%
ROI (vegetables)	1:12
Labor Savings	3 man-days/ha

Storage & Handling

1. Storage Protocol

Temperature: 5-30°C
Container: Original HDPE
Shelf Life: 24 months

2. Spill Management

Small Spills: Absorb with vermiculite
Large Spills: Contain with sand barriers
Decontamination: 5% sodium hydroxide

Conclusion: Best Use Practices

Lethal Super 5% EC remains valuable when:

Used against susceptible pest populations
Applied in proper rotation programs
Combined with IPM strategies
Following all safety protocols

Final Tip: Always conduct resistance monitoring before season-long reliance.

Disclaimer: Regulations vary – consult local guidelines before use.

Author Profile

Sourashis Chanda

Author (Intern) at Bitlance Tech Hub Private Limited | [email protected]

Sourashis Chanda brings readers their unique perspective on Business, Economy, Health and Fitness. With a background in Health and Physical Fitness of 2years, I am dedicated to exploring [what they aim to achieve with their writing, on the sustainable Economy of the country, various pro tips about business, latest goverment news, with some tips in health are and Fitness.