Maldison 50 Insecticide 250mL – Lice, Mite, Flea & Tick Control for Poultry & Livestock

Maldison 50 Insecticide 250mL: Lice, Mite, Flea and Tick Control for Poultry and Livestock

Maldison 50 is a broad-spectrum insecticide concentrate for controlling external parasites on poultry, dogs, cats, pigs, horses and cattle, as well as in the sheds and housing they live in. It handles lice, poultry mites, fowl tick, fleas, brown dog tick, sarcoptic mange, flies and mosquitoes. The active constituent is maldison (malathion) at 500g/L, an organophosphate that works by disrupting the parasite's nervous system.

You dilute it with water to the rate for the animal and pest you're treating, so a single 250mL bottle stretches a long way. As a rough guide, at the poultry-house rate it makes around 12.5L of spray, which is plenty for a backyard coop.

How It Works

Maldison is an anti-cholinesterase compound. It blocks the enzyme that normally switches nerve signals off in the insect, so the parasite's nerves keep firing until it can't move or breathe and dies. It mixes readily with hard or soft water and forms an emulsion, so it can go straight into the spray tank with the agitator running.

Maldison 50 Mixing Rates

Always dilute to the rate for the specific animal and pest. The main label rates are:

For poultry lice and mites, repeat the treatment 8 to 14 days after the first application. That second pass is what kills the lice hatching from eggs that were present the first time, and skipping it is the most common reason an infestation comes straight back.

Treating Poultry Mites and Lice

Poultry mites and lice largely live and breed in the coop itself, not just on the bird, so treating the housing is half the job. Spray nesting boxes, litter and walls at the house rate, and paint the roosts, since red mite in particular hides in the timber joints and cracks around perches during the day. When treating birds directly, use the on-bird rate and avoid spraying the head and eye area, as the dilution can irritate them. Then repeat the whole treatment 8 to 14 days later.

Withholding Periods

Do not use later than 7 days before slaughter for human consumption. Milk collected from treated animals within 5 hours of treatment must not be used for human consumption or processing, and must not be fed to bobby calves.

A Note on Safety

Maldison is highly toxic to bees and other beneficial insects, and to some fish and aquatic life. Don't spray flowering plants that bees are working, keep it away from hives, and don't let spray or run-off reach dams, drains or waterways. It's an organophosphate, so wear suitable protective clothing, avoid breathing the spray mist, and keep people and untreated animals out of treated housing until the spray has dried.

Key Features & Benefits

• Broad-spectrum control of lice, poultry mites, fowl tick, fleas, brown dog tick, sarcoptic mange, flies and mosquitoes

• Suitable for poultry, dogs, cats, pigs, horses and cattle, plus their housing

• Maldison (malathion) 500g/L concentrate, diluted with water

• One 250mL bottle treats a lot, ideal for a backyard flock or a few pets

• Mixes readily with hard or soft water

• Treats both the animal and the shed, nest boxes and roosts where mites breed

• Clear label mixing rates for every animal and pest

Frequently Asked Questions

What is Maldison 50 used for?
Controlling external parasites, lice, poultry mites, fowl tick, fleas, brown dog tick, sarcoptic mange, flies and mosquitoes, on poultry, dogs, cats, pigs, horses and cattle, and in their housing.

What is the mixing rate for chickens?
For lice and mites in the poultry house, mix 500mL per 25L of water and spray nesting boxes, litter and walls. For roosts, mix 500mL per 8L and paint it on. To treat the birds themselves for lice or tropical fowl mite, mix 500mL per 100L and spray at 50L per 1000 birds. Repeat after 8 to 14 days. Scale the amount to your bottle and flock size.

How do I get rid of poultry mites and lice for good?
Treat the coop, not just the birds. Spray the house and paint the roosts, since mites hide and breed in the timber, then treat the birds at the on-bird rate. The key step is repeating the whole treatment 8 to 14 days later to catch newly hatched lice, otherwise the problem returns.

Can I spray it directly on my chickens?
Yes, at the on-bird rate (500mL per 100L of water), but avoid the head and eye area as the spray can irritate them.

What is the mixing rate for cattle?
For lice, mix 1L per 100L of water and spray at about 4.5L per head. For fly control, mix 500mL per 40L (or 250mL per 20L), and adding sugar or molasses improves the result.

What is the withholding period?
Do not use within 7 days of slaughter for meat intended for human consumption. Milk taken within 5 hours of treatment must not be used for human consumption or fed to bobby calves.

Is it safe around bees and fish?
No, it's highly toxic to bees and to fish and aquatic life. Keep it away from flowering plants bees are visiting, from hives, and from any water, drains or run-off.

Where can I buy Maldison 50 in Australia?
You can buy Maldison 50 Insecticide 250mL from BPG Supplies, shipped Australia-wide.