Pyrethroid mechanism of action diagram

How pyrethroid works β€” illustrated mechanism of action Β· PestControlBasics.com

πŸ§ͺ ACTIVE INGREDIENT Pyrethroid β€” IRAC 3A ⚠️ CAUTION

Lambda-Cyhalothrin

One of the most widely used professional pyrethroids β€” sold under four major brand names including Demand CS and Cyzmic. Understanding that these are identical in chemistry prevents costly duplicate purchases.

4+
Brand Names
30+
Target Pests
60–90 days
Residual Life
No
OMRI Organic
βš–οΈ
For informational and educational purposes only. PestControlBasics.com is not a licensed pest control operator and does not provide pest control advice, recommendations, or professional services. All pesticide applications must comply with the product label β€” the label is the law under FIFRA (7 U.S.C. Β§ 136). Always read the full label before use. Consult a licensed pest management professional for infestations involving structural damage, public health pests, or any situation where safety is a concern. SDS/MSDS links open third-party sources; PestControlBasics.com is not responsible for their content.

🏷️ Brand Names β€” Same Active Ingredient

⚠️ Don't buy duplicates. All products below contain lambda-cyhalothrin as the active ingredient. They differ only in concentration, formulation type, and price β€” not in how they work or what they kill. Buying two different brands is buying the same pesticide twice.
Demand CS
Syngenta Β· Microencapsulated suspension
9.7% lambda-cyhalothrin
Professional
Cyzmic CS
Control Solutions Β· Microencapsulated suspension
9.7% lambda-cyhalothrin
Professional (generic)
Scimitar GC
Syngenta Β· Capsule suspension
11.8% lambda-cyhalothrin
Golf course/turf
Karate Z
Syngenta Β· Liquid
2.08% lambda-cyhalothrin
Agricultural
Martin's Cyonara
Control Solutions Β· RTU spray
0.5% lambda-cyhalothrin
Consumer

🎯 Target Pests

βœ“Ants
βœ“Cockroaches
βœ“Fleas
βœ“Ticks
βœ“Mosquitoes
βœ“Spiders
βœ“Scorpions
βœ“Bed Bugs (contact)
βœ“Wasps
βœ“Earwigs
βœ“Silverfish
βœ“Centipedes
βœ“Millipedes
βœ“Crickets
βœ“Stink Bugs
βœ“Asian Lady Beetles
βœ“Boxelder Bugs
βœ“Stored Product Pests

βš—οΈ Mixing & Dilution Guide

Rates below are general guidelines. Always follow your specific product label β€” rates vary by brand and application site.

General perimeter spray (concrete/soil)
0.2–0.4 fl oz / gal
Apply along foundation, under eaves, entry points. Repeat every 60–90 days. Demand CS and Cyzmic CS are interchangeable at this rate.
Spot treatment indoors
0.1–0.2 fl oz / gal
Apply to cracks, crevices, baseboards only. Lower rate for indoor use. Keep people and pets out until dry (β‰ˆ30 min).
Mosquito barrier spray (foliage)
0.4 fl oz / gal
Apply to shrubs, grass, and ornamental foliage. Do not apply to blooming plants. Highly toxic to bees β€” apply evening only.

πŸ“‹ Safety Data Sheet (SDS)

πŸ“„

Demand CS β€” Safety Data Sheet

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πŸ“„ Search for this SDS on CDMS β†’
πŸ“„ Demand CS β€” Safety Data Sheet Β· View the complete SDS document above or download below

⚠️ Safety & Precautions

  • Extremely toxic to fish and aquatic invertebrates β€” do not apply near water or storm drains
  • Highly toxic to bees β€” apply only in evening when foraging is minimal
  • Cats are sensitive to pyrethroids β€” keep off treated surfaces until fully dry
  • PPE required: gloves, long sleeves, eye protection during mixing
  • REI (Re-Entry Interval): 12 hours for agricultural, 30 minutes (dry) for residential
βš–οΈ
For informational and educational purposes only. PestControlBasics.com is not a licensed pest control operator and does not provide pest control advice, recommendations, or professional services. All pesticide applications must comply with the product label β€” the label is the law under FIFRA (7 U.S.C. Β§ 136). Always read the full label before use. Consult a licensed pest management professional for infestations involving structural damage, public health pests, or any situation where safety is a concern. SDS/MSDS links open third-party sources; PestControlBasics.com is not responsible for their content.
βš—οΈ
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πŸ“š Sources: EPA Pesticide Labels Β· NPIC Pesticide Info
Published: Jan 1, 2025 Β· Updated: Apr 7, 2026