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uk bayer insecticide k othrine sc 25 1 l - 0, thumbnail

Insecticide K-Othrine SC 25, 1 litre


In stock

European Store cannot dispatch to

United States

K-Othrine SC 25, 1 litre

uk bayer insecticide k othrine sc 25 1 l - 0

Insecticide K-Othrine SC 25, 1 litre

In stock

- +

In stock

European Store cannot dispatch to

United States

Cannot be used by
General public / amateur
Can be used by
Professional, Trained professional

Product information

K-Othrine® SC 25 is a broad spectrum insecticide, containing 25 g/L deltamethrin, designed for the control of a wide a range of domestic and industrial insect pests.Insects that can be controlled include: Dictyoptera ( Cockroaches ), Hymenoptera ( Wasps and Ants), Diptera ( Flies ), Siphonaptera ( Fleas ), Hemiptera (Bed Bugs), Lepidoptera (Moths), Coleoptera (Beetles), Thysanura (Silverfish), Psocoptera (Booklice).

K-Othrine® SC 25 is a suspension concentrate that is, a particulate supension of solid deltamethrin particles in water. The insecticide particles, although of a size similar to the finest emulsion, are not readily absorbed into surfaces. They remain exposed on the surface, like a wettable powder to maintain a viable and sustained insecticidal effect. Unlike a wettable powder however the particles are not visible and are non-staining.

K-Othrine® SC 25 is therefore a product that acts like a wettable powder in terms of residuality, but can be handled with the ease and convenience offered by a liquid. K-Othrine® SC 25 ensures a fast penetration of the insect cuticle (outer shell), resulting in the observable effect of insect flushout, knockdown and kill.

The effect of surfaces on performance for K-othrine SC25

With any residual or surface spray treatment, the objective is to control insect populations over a period of time, by depositing a film of insecticide on surfaces where insects are known to forage, rest or reproduce.

The duration of residual effect of a surface spray insecticide treatment depends upon the surface onto which the insecticide is being applied. K-Othrine® SC 25 is compatible with many different surfaces such as wood, glass, metal and fabric. However, on highly porous substances such as concrete and wood, liquid insecticides can be absorbed into the material and therefore become unavailable to any insect that contacts that surface. With such porous materials however, K-Othrine® SC 25 will be absorbed less than emulsifiable concentrates and even some wettable powders and so exhibit greater residual activity and provide reliable control even in such difficult circumstances.

Biological Activity

K-Othrine® SC 25 acts against insects by contact (and, to a lesser extent by ingestion through grooming). The mode of action of K-Othrine® SC 25 centres on the nervous system of insects, the results of which give rise to the observable effects commonly described as flushout and knockdown.

The initial effect of K-Othrine® SC 25 causes stimulation of the insect nerves, which gives rise to excitable and uncoordinated motion of the insect. This is known as flushout.

The second effect is a complete blockage of the insect's central motor system, resulting in total paralysis. This paralysis is known as knockdown. These effects are most effectively demonstrated by modern pyrethroids such as deltamethrin, one of the most potent insecticides available to pest control professionals. K-Othrine® SC 25 acts rapidly, with good flushout effects and with normal doses 50% of the insects present during treatment should be knocked down in under 15 minutes (KT 50).

K-Othrine® SC 25 Technical Information

K-Othrine® SC 25 is prepared for spraying by simply adding to water and stirring. It is very easy to mix. The spray liquid can be applied to surfaces with any suitable hand or mechanical sprayer capable of producing a coarse wetting spray.

Unlike some wettable powders the solution is free flowing and will not block spray nozzles. On a porous surface, twice the volume should be applied but at half the dilution rate to allow for the absorbency of the surface (see table). In all cases spraying should continue until the area being treated is visibly wet without the liquid running off.

Recommended application rates for K-Othrine® SC 25 as surface treatment

Targeted pests

K-Othrine SC 25 dose


Area of action 

Flying and crawling insects 

25 ml

5 l

100 m2

Additional Information

Manufacturer Bayer
Packaging 1 litre
Destination use Professional, Trained professional
Shelf life (years) 2
Formulations SC-concentrated suspension
Application Type Low pressure spray
Active Substances Deltamethrin
Active Substance Concentration 25 g/litre
Mode of action contact, ingestion
Odor slight
Dosage 25-50 ml/100 mp;25-50 ml/5 l
Get rid of Ants, Cockroaches American, Cockroaches German, Cockroaches Oriental, Earwigs, Fleas, Flies, Millipedes, Moths of Clothes, Moths of Food, Silverfish, Spiders, Vinegar Flies, Wasps

Precautionary Statements

P102 Keep out of reach of children
P273 Avoid release to the environment
P391 Collect spillage
P501 Dispose of contents/container to …
EUH208 Contains <name of sensitising substance>. May produce an allergic reaction
H410 Very toxic to aquatic life with long lasting effects.

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