Available as an emulsifiable concentrate, RaVap is applied to approximately 10 percent of the birds treated for ectoparasites and 7 percent of premise area (14 million square feet) for a variety of pests. Treatments are applied as high-pressure sprays at a rate of pound tetrachlorvinphos + pound dichlorvos per 100 birds. Premise applications are made at a rate of + pound to + pound of active ingredient per 1,000 square feet of surface area for a variety of pests in poultry houses. RaVap is occasionally used as a spot larvicide treatment for fly control.
