How do you mix dichlorvos?

Directions for use specify the product is to be diluted to 240 mL (60 g dichlorvos, 54 g chlorpyrifos)/10 L water and applied as a low pressure spray to the point of run-off to cracks, crevices, harbourages and places where pests may occur.

Is dichlorvos toxic to humans?

Dichlorvos attacks an important enzyme in the nervous system of insects and humans. People can get sick from breathing too much pesticide vapor in the air. Early symptoms of overexposure in people include headache, lack of appetite, nausea, vomiting, and difficulty breathing.

What is the active ingredients in dichlorvos?

Dichlorvos, also known as DDVP (2,2-dichlorovinyl dimethyl phosphate is an orgnophosphate insecticide cum pesticide (USEPA, 2007).

What does dichlorvos mean?

Definition of dichlorvos : an organophosphorus insecticide and anthelmintic C4H7Cl2O4P used especially in veterinary medicine. — called also DDVP.

Is dichlorvos water soluble?

Properties. Dichlorvos is a colourless liquid with aromatic odour. Its density is 1.425 g/cm3 (23.35 g/in3) at 25 °C (77 °F), melting point below −60 °C (−76 °F) and a boiling point of 140 °C (284 °F) at 27 hPa. Dichlorvos is soluble in water.

How long does dichlorvos take to break down?

In an experiment where dichlorvos was applied to a pond, 50% of the chemical was broken down in 24-36 hours. Dichlorvos does not seem to bind to soil. This means it can move through soil fairly rapidly. The breakdown in soil is less rapid than in air or water.

What is the half life of dichlorvos?

DDVP photodegraded with a half life of 15 -5 hours on a sandy loam soil, and degraded with a half-life of 16.5 hours when incubated in darkness under similar conditions. After 72 hours of irradiation, 97% of the applied DDVP had dissipated from the soil by a combination of degradation and volatilization.

How do you use Nuvan insecticide?


  1. For localized surface application in homes, cabins, garages, basements and other labelled application sites.
  2. Apply a two second application of product per 4-5 linear feet as a localized application with the spray being applied at 12-15 inches from the surface being treated.