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Coopers Maverick Sheep Lice & Worm Treatment Guide 2026

Coopers Maverick | Sheep Lice & Worm Treatment

One pour-on solution for lice and worm control

Treat sheep lice and worms in one handling event.

Learn how Coopers Maverick combines lice treatment and abamectin-sensitive worm control in one rainfast pour-on application.

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Product Overview

Coopers Maverick is an off-shears pour-on treatment designed to control sheep lice and abamectin-sensitive gastrointestinal worms in a single application. Applied within 24 hours of shearing, Maverick reduces labour, simplifies chemical management, and minimises additional sheep handling.

Unlike standard lice-only pour-ons, Maverick combines lice treatment and worm control in one pass through the shed, helping producers reduce handling stress and save time during shearing operations.

Why Producers Choose Coopers Maverick

Combined Lice and Worm Treatment

Maverick combines abamectin pour-on lice control with treatment of abamectin-sensitive gastrointestinal worms in one application.

This allows producers to:

  • Reduce handling time
  • Eliminate a second handler pass
  • Simplify NVD record keeping
  • Reduce labour costs
  • Minimise sheep stress during shearing

The Case for Combining Lice and Worm Treatment

WITHOUT MAVERICK WITH MAVERICK
Two separate products to buy, store and account for on the NVD One product, one storage location, one NVD entry
Two separate shed events or handler passes Single handler pass
Additional labour costs from second handling Significant labour savings
Higher combined treatment costs Often cheaper than separate treatments
Increased sheep stress from extra handling Reduced handling stress

When Maverick Is the Right Choice

1. You Already Drench at Shearing

If abamectin is part of your worm rotation program, Maverick replaces both your lice product and worm drench in a single pour-on treatment.

2. Large Commercial Sheep Operations

For larger mobs, removing a second handler pass can save substantial labour during shearing events.

3. Simplified Chemical Management

Maverick reduces the number of products that need to be ordered, stored, and tracked.

4. Levamisole or Benzimidazole Resistant Worms

Maverick treats abamectin-sensitive worm strains, including some resistant to levamisole and benzimidazoles.

5. Rainfast Lice Treatment

The water-based rainfast formulation maintains treatment efficacy even if rain follows application.

6. Suitable for Adult Sheep and Weaners

Approved for sheep over 6 weeks of age and at least 10 kg liveweight.

Critical Application Requirement

Maverick MUST Be Applied Within 24 Hours of Shearing

This is the most important requirement when using Maverick.

Unlike many other lice treatments that allow up to 7 days post-shearing, Maverick depends on application before wool regrowth begins.

If treatment is delayed beyond 24 hours after shearing, lice control efficacy may be compromised.

Maverick Cost Comparison Table

Weight Maverick Alone Extinosad + Trifecta Exilice + Trifecta Eradicator + Trifecta Saving vs Cheapest Combo
40 kg $1.04 $1.05 $1.10 $1.05 -$0.01
50 kg $1.30 $1.12 $1.37 $1.31 +$0.18
60 kg $1.56 $1.19 $1.64 $1.57 +$0.37
70 kg $1.82 $2.02 $1.92 $1.83 -$0.01

Trifecta estimated at $0.07/mL. Indicative pricing only – confirm current FarmCo pricing.

Quick Reference Specifications

Feature Specification
Active Ingredient Abamectin 6 g/L
Chemical Class Macrocyclic Lactone (ML)
Administration Pour-on backliner
Dose Rate 10 mL per 10 kg liveweight
Application Window Within 24 hours of shearing ONLY
Pack Sizes 6L, 25L
Meat WHP 21 days
Wool WHP 6 weeks
ESI 28 days
Rainfast Yes
Minimum Weight/Age 10 kg and 6 weeks
Cost at 50 kg $1.30/head

Staff Conversation Guide

Customer Says You Can Say
“I’m already drenching at shearing.” Maverick treats lice and worms in one pass, reducing labour and handling.
“Is it worth the extra cost?” Compared to buying separate lice and worm products, the cost difference is often small.
“I’m treating a few days after shearing.” Maverick must be applied within 24 hours of shearing.
“My worm drench hasn’t been working.” Confirm whether abamectin is still effective before recommending Maverick.

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