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Coptrol Application Rates to

Control Algae

Because Coptrol is a non-corrosive liquid, it is really

easy to measure, mix and apply.

Once diluted it can be applied from aircraft,boats,

pontoons,horticulture sprayers or even a knapsack

spray.

For smaller storages it can be applied from the bank

and it can even be dripped directly in high volume

treatments such as flood irrigation.

Before treating with Coptrol, calculate the volume of the

body of water. Do this by measuring the surface area and

multiplying it by the average depth down to 1 metre (you

can ignore depths below 1 metre).

The best application method is by spraying using a 1:10

or 1:20 Coptrol/water dilution. For the best result, apply

on a calm, sunlit, wind-free day when algae first appear.

Where the water is heavily infested with algae, it is advisable ‑ where practicable ‑ to remove clumps of algae with a rake or net before applying Coptrol. In really heavy infestations it may be necessary to apply a second treatment after 10‑15 days.

Application Rates

The rate of use depends on the degree of infestation,

the kinds of algae present and the depth of water to

be treated.

Tanks and troughs

2-5 mL Coptrol per 1000 litres of water.

Dams, ponds, water impoundment

2-5 litres Coptrol per 1000 square metres surface or

per million litres storage water.

Free floating algae

(Euglena, Microcystis, Aphanizomenon, Oscillatoria,

Dictyosphaerium and Anabaena) require treatment with