The standard rate of application is 5 litres per hectare. LARVEX 100 should be gently "rained", sprayed or thrown onto the surface of the catchment but not jetted under the water surface. LARVEX SHOULD NOT BE mixed with water before application, neither should it be stored nor used in vessels containing any aqueous materials.

Application should be as late in the day as possible, to the selected catchments around the periphery or along the edges. If the area is largely inaccessible then the LARVEX may be applied at the accessible points from where it will spread over the catchment. This can take time but complete coverage is obtained when further bulk LARVEX refuses to spread, remaining as visible globules. The indicator "indol" (available from Accotec) can be used to ensure surface is covered.

A second application, at the same dosage should be made between 5 and 6 days after the first, and then when 4th stage larvae reappear (approximately every 3-4 weeks).