David Grays Malathion and White Oil Insecticide 200mL: Dual-Action Insect Spray for Scale and Aphids

David Grays Malathion and White Oil: A Dual-Action Insecticide for the Home Garden

David Grays Malathion and White Oil Insecticide is a dual-action insecticide concentrate that controls chewing and sucking pests in home gardens. It combines 100g/L maldison (malathion), a contact insecticide, with 400g/L petroleum oil (white oil), which smothers insects and their eggs. It's registered for scale, aphids, thrips, caterpillars, leafhoppers and other insects on vegetables, fruit trees and ornamentals. Made in Australia by David Gray & Co, this 200mL concentrate is mixed with water and applied with a garden sprayer.

How Maldison and White Oil Work Together

• Maldison (malathion): a fast-acting contact insecticide that acts on the insect's nervous system, controlling a wide range of pests.
• White oil: coats insects, mites and eggs, blocking their breathing pores so they suffocate. It's especially effective on scale, whose waxy shells protect them from many sprays.

Together, the oil helps the spray stick to and penetrate hard-shelled pests like scale, while the maldison controls softer, mobile insects such as aphids and caterpillars.

Is White Oil Good for Scale Insects?

Yes. White oil is one of the most effective treatments for scale, including white wax scale, red scale and white louse scale on citrus, bay trees, camellias and other ornamentals. Combining it with maldison adds contact action on young scale crawlers and other insects feeding on the same plants.

What Is Malathion Insecticide Used For?

Malathion is used in home gardens to control insects that chew or suck sap from plants, including:

• Scale on citrus, roses and ornamentals
• Aphids on roses, vegetables and fruit trees
• Thrips on flowers and vegetables
• Caterpillars on vegetables and ornamentals
• Leafhoppers on vegetables and ornamentals

Aphid Insecticide: When to Use a Stronger Spray

For light aphid infestations, try a lower-impact option first, such as an insecticidal soap or plain white oil, as these spare more beneficial insects. Malathion and white oil is best for heavier infestations, mixed pest problems, or where scale and aphids occur together.

How to Use

• Shake well before use.
• Mix the concentrate with water at the label rate for your pest and plant, and only mix what you need.
• Spray to thoroughly wet all plant surfaces, including both sides of leaves, stems and any clustered scale.
• Spray late in the day, out of the heat, to reduce leaf burn and protect bees.
• Don't spray in high temperatures or on drought-stressed plants.
• Observe the withholding period on the label before picking treated fruit or vegetables.

Protecting Bees and Beneficial Insects

Maldison is a broad-spectrum insecticide and is toxic to bees and beneficial insects such as ladybirds and lacewings. Don't spray plants in flower while bees are active, spray in the late afternoon or evening, and only treat plants with pest problems.

Safety

Read the label before use and keep out of reach of children. This product can be harmful through skin contact and inhalation, may cause skin allergy, and may be fatal if swallowed and it enters the airways. Wear rubber, PVC or nitrile gloves, eye protection and long sleeves when mixing and spraying, and avoid breathing spray mist. Don't let the product or spray enter drains, sewers, streams or ponds. If poisoning occurs, contact a doctor or the Poisons Information Centre on 13 11 26.

Key Features and Benefits

• Dual-action insecticide: maldison plus white oil
• 100g/L maldison and 400g/L petroleum oil
• Controls scale, aphids, thrips, caterpillars and leafhoppers
• White oil smothers scale, mites and eggs
• For vegetables, fruit trees and ornamentals in the home garden
• Mix only what you need from the 200mL concentrate
• Made in Australia by David Gray & Co, APVMA registered

Product Details

• Brand: David Grays
• Manufacturer: David Gray & Co Pty Ltd, O'Connor WA
• Active constituents: 100g/L maldison (an anticholinesterase compound), 400g/L petroleum oil
• Solvent: 357g/L liquid hydrocarbon
• Pack size: 200mL concentrate
• Signal heading: CAUTION
• Use: Vegetables, fruit trees and ornamentals in the home garden

Frequently Asked Questions

What is David Grays Malathion and White Oil used for?

It's a dual-action insecticide for the home garden that controls scale, aphids, thrips, caterpillars, leafhoppers and other insects on vegetables, fruit trees and ornamentals.

How is David Grays Malathion and White Oil different from plain Malathion Garden Spray?

This version adds 400g/L white oil to the maldison, giving extra smothering action on scale, mites and eggs. Plain Malathion Garden Spray is a straight insecticide without oil.

What is malathion insecticide used for?

Malathion controls chewing and sap-sucking insects such as aphids, scale, thrips, caterpillars and leafhoppers on garden plants, as listed on the label.

Is white oil good for scale insects?

Yes. White oil smothers scale and their eggs, and is one of the most effective treatments for white wax, red and white louse scale.

What is white oil insecticide used for?

White oil controls scale, mites, aphids and mealybugs by coating and suffocating them. Combined with maldison, it also controls caterpillars and other mobile insects.

Is it safe for bees?

No. Maldison is toxic to bees and beneficial insects. Don't spray flowering plants while bees are active, and spray in the late afternoon or evening.

Can I use it on fruit and vegetables?

Yes, on the crops listed on the label. Always observe the withholding period before harvesting.

Where can I buy David Grays Malathion and White Oil in Australia?

David Grays Malathion and White Oil Insecticide 200mL is available from Bonnyrigg Produce & Garden Supplies at 462 Elizabeth Dr, Bonnyrigg NSW 2177, Australia. You can visit our store or order online with delivery across Australia.