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Deosect Spray

Item Number: DEOSECT

Deosect Spray - Deosect Spray

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  • 1L

    In Stock

    £ 81.39

    Web code: E8880

  • 250ml

    In Stock

    £ 38.45

    Web code: E3600

Total: £0.00

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Deosect Fly & Lice Horse Spray Solution 250ml.

Deosect is a cypermethrin spray concentrate for the control of flies and lice on horses. Deosect concentrate is diluted at 10ml per 500ml of water. Apply 500ml per horse with sponge or handsprayer.

Use monthly for general fly control or in severe cases use every two weeks.

Use biocides safely. Always read the label and product information before use.


A straw coloured or pale yellow emulsifiable concentrate, containing 5% w/v cypermethrin (cis 50: trans 50).


A residual insecticide for the control of flies and lice on horses.
Dosage and administration

Deosect Spray must be diluted with water to make a solution just before use. A knapsack or hand sprayer or a sponge may be used to apply the solution. For the best results the solution should be used within 24 hours.


Dilution rate

One litre (2 pints) of Deosect Spray concentrate should be diluted with 50 litres (11 gallons) of water. Alternatively, the following table may be used:

10 ml
 500 ml
20 ml
 1 litre
100 ml
 5 litres
200 ml
 10 litres

 A medium fine spray is advisable to avoid fogging of the diluted Deosect Spray. Careful attention must be paid to total animal coverage, especially the face, legs, back and hind quarters. Avoid spraying directly into animals eyes. The following amounts should be used:

Horses – 500 ml of diluted solution per animal.

Ponies – 125 ml of diluted solution per animal.

Fly Control

The application of the solution should commence at the onset of the fly season and be repeated monthly for general fly control and every two weeks for severe head and face fly control.

Lice Control

Apply when lice are observed and repeat as necessary at a minimum of 14 days.
Contra-indications, warnings, etc

For animal treatment only.

Keep out of reach of children.

For external use only.

Protection of operators

Wear protective gloves, face shield and rubber boots and protective clothing when handling the concentrate and diluted solution and when applying the product. A face shield should be worn when handling the concentrate.

Avoid working in the spray mist.

Remove heavily contaminated clothing and wash before re-use.

Wash concentrate from skin or eyes immediately with water. In case of contact with the eyes, give prolonged irrigation with water and seek medical advice.

Wash hands and exposed skin before eating, drinking or smoking and after work.

In case of contact with eyes, give prolonged irrigation with water and seek medical attention.

Protection of consumers

In accordance with the Horse Passport legislation (Commission Decision 2000/68/EC as implemented in national legislation) a 6 month withdrawal period applies to the use of this product.

Protection of the Environment

Dangerous to fish. Do not contaminate ponds, waterways or ditches with the product or used container.

Empty containers completely, wash out thoroughly and dispose of safely.

Do not spray in or near milking parlours or where milking machinery may be contaminated.

Unused product should be disposed of in accordance with any guidance from an appropriate waste regulation authority.


None when used as recommended.
Pharmaceutical precautions

Flammable liquid.

Store below 25°C. Protect from frost.

Store in original container, tightly closed, in a safe place. Store away from food, drink and animal feed.

The diluted solution must be used within 24 hours.

Do not mix with other chemicals.
Legal category

POM-VPS (previously PML)
Packaging Quantities

1 litre and 250 ml metal cans.
Further information

Marketing authorisation number

Vm 1596/4234.

Use biocides safely. Always read the label and product information before use.

Read more in the Zoetis Relief From Flies a Horse Owners Leaflet

Data Sheets

DEOSECT 1L: Data Sheet

DEOSECT 250ML: Data Sheet