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Neporex® 2SG Fly Larvicide

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Neporex® 2SG Fly Larvicide
Ships for $5

Price range: $141.82 through $242.73

Neporex® 2SG is a granular fly larvicide that stops stable flies and mosquitoes before they hatch — targeting larvae in manure, spilled feed, and other moist breeding areas rather than adult flies.

 

  • Targets fly larvae at the source
  • Will not harm beneficial insects or fly predators
  • Scatter granules or dissolve in water for spraying
  • Ships for $5

Description

What It Helps Control

  • Stable flies (larval stage only)
  • Mosquitoes (larval stage only)
  • Note: Neporex does NOT kill adult flies. Fly population reduction is gradual — expect visible decline within 1–2 weeks.

Approved For Use On

Application Sites

  • Calf hutches
  • Slatted floors
  • Cattle pens
  • Barn and stall floors
  • Manure and feed spillage areas

Do not apply directly to livestock feed or drinking water.

Neporex takes a proactive approach to fly control — stopping populations before they emerge and supporting a more complete program when used alongside adult fly control products.

Scatter Application

  • Evenly distribute granules over areas where manure, moisture, and spilled feed accumulate

Spray or Pour Application

  • Mix 1 lb. of granules per 1 gallon of water
  • 1 gallon of solution treats approximately 200 sq ft
  • Apply to breeding areas such as manure buildup, calf housing, and damp barn floors

Application Guidelines

  • Begin applications early in fly season
  • Reapply every 3–4 weeks
  • Focus on consistent breeding areas
  • Use in conjunction with adult fly control products for full-season protection

Active Ingredients

  • Cyromazine (CAS No. 66215-27-8) 2%
  • Other ingredients 98.0%

Frequently Asked Questions

How long before I see results?
You’ll typically notice a reduction in fly populations within 1–2 weeks as larvae are prevented from maturing into adult flies.

Can I use it while animals are present?
Yes—just apply it to approved areas like bedding, manure, and floors, and avoid direct contact with feed or drinking water.

Does it kill adult flies?
No—Neporex targets fly larvae only, not adult flies.

How does it work with my adult fly control program?
It complements your program by stopping flies at the source, while your adult control handles the flies you already see.

Will it harm fly predators or beneficial insects?
No—Neporex is designed to control fly larvae without harming beneficial insects or fly predators.

Additional information

Size

11 lbs, 44 lbs

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