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CyLence® Pour-On Insecticide for Dairy and Beef Cattle

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CyLence® Pour-On Insecticide for Dairy and Beef Cattle
Ships for $5

Price range: $22.78 through $141.66

CyLence® Pour-On Insecticide provides fast knockdown and effective control of horn flies, face flies, stable flies, house flies, and lice on dairy cattle — with zero milk withdrawal when used according to label directions.

 

  • No pre-slaughter withdrawal
  • No milk withhold
  • Formulated with cyfluthrin, a synthetic pyrethroid
  • Ships for $5

Description

What It Helps Control

  • Horn flies
  • Face flies
  • Stable flies
  • House flies (as labeled)
  • Biting and sucking lice

Approved For Use On

Animals

  • Lactating dairy cows
  • Non-lactating dairy cattle
  • Replacement heifers
  • Dairy calves (as labeled)
  • Beef cattle

Best For

  • Dairies with heavy horn fly pressure
  • Farms needing lactation-approved control
  • Zero milk withdrawal operations
  • Quick low-labor application
  • Freestall or pasture-based dairies.

A low-volume, ready-to-use pour-on designed specifically for dairy operations. No spray rigs. No dust bags to maintain. Minimal labor for effective fly control during lock-ups, herd checks, or routine handling.

Pour-On Application

  • Ready-to-use — no dilution required
  • Apply along the backline from shoulders to tailhead
  • Reapply as needed based on fly pressure and label instructions

Dosage by Weight and Target Pest

Horn and face flies:

  • 4 ml / 400 lbs.
  • 8 ml / 400–800 lbs.
  • 12 ml / 800+ lbs.

Biting and sucking lice:

  • 8 ml / 400 lbs.
  • 16 ml / 400–800 lbs.
  • 24 ml / 800+ lbs.

Coverage:

  • 1 pint treats 39 head of cattle 800+ lbs. for flies, or 19 head for lice
  • 6 pints treats 236 head of cattle 800+ lbs. for flies, or 20 head for lice

Complete Fly Management Program

CyLence works best as part of a full program. Consider pairing with:

  • Fly tags (rotate insecticide classes to reduce resistance)
  • Feed-through larvicides
  • Premise sprays
  • Manure management programs
  • Back rubbers or dust bags

Active Ingredients

  • Cyfluthrin 1%
  • Other ingredients 99%

Frequently Asked Questions

Is there a milk withdrawal?
No. There is zero milk withdrawal when used according to label directions.

How quickly does it start working?
CyLence provides rapid knockdown of flies and lice following application.

How often should I apply it?
Re-treatment intervals depend on fly pressure and label directions. Follow label guidelines carefully.

Can I use it with fly tags?
Yes. For best long-term results, rotate insecticide classes to help prevent resistance.

Does it work on lice in winter?
Yes. CyLence is labeled for control of biting and sucking lice.

Can I use it on calves and heifers?
Yes, when used according to label directions.

Additional information

Weight 5 lbs
Options

CyLence 6 pint, CyLence 1 pint

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