CLASS : Organic

ACTION : Mosquito Larvicide

COMPOSITION : Vegetable oil derivatives

ACTIVITY

The oil forms an extremely thin monolayer film over
stagnant or near stagnant water body. This monolayer film effectively suffocates and drowns mosquito larvae and pupae and render the water body unsuitable for mosquito breeding.

Mode of Action

Larvex is not a toxicant. Its mode of action is
physical. Larvex has a strong water surface action (surfactant) which causes the wetting of the interior of the respiratory trumpet of mosquito larva and pupa thus allowing the entry of water which suffocates and drowns them. The monolayer also forms a preventive barrier against female mosquito oviposition.

Where to use

Water bodies treater with Larvex remain portable and is
good for both domestic and livestock use. Larvex may therefore be applied in clean water bodies such as domestic water tanks, troughs, pools ponds, dams and lakes. It is also used in sewers and dirty water systems.

Rates and Methods of Application :

(1) Clean water bodies – the rate of use is 0.5mls per
m2 (5 litres per hectare). Larvex is self-spreading and requires no application equipment. Pour the appropriate quantity of Larvex onto the water surface. It will quickly spread to cover the entire water surface. When dealing with large water bodies such as dams and lakes, pour the measured dosage at a number of points around the water body.

(2) Sewers and polluted areas – the rate of use is 1ml per m2 poured at a number of points around the water body. Where there is abundance of weeds, and other vegetative growth a sprayer to inject the product onto the water surface may be necessary.

Frequency of Application

During the breeding season first repeat after 7 days and then after every 3 weeks. This will effectively break the mosquito breeding cycle.

Environmental Impact

Larvex is a non-toxicant and does not affect marine life (fish etc). It is biodegradable and does not accumulate in the environment. It is therefore environmentally friendly.