Chlorpyrifos

A: Chlorpyrifos is a broad-spectrum organophosphate insecticide that is used to control a variety of pests in agricultural, residential, and commercial settings. It is commonly used for pest control in crops, livestock, and residential areas.

A: Chlorpyrifos works by disrupting the nervous system of pests. It inhibits acetylcholinesterase, an enzyme necessary for nerve function, leading to paralysis and eventually death of the insect.

A: Yes, chlorpyrifos can be harmful to dogs if ingested, inhaled, or absorbed through the skin. It is important to keep pets away from treated areas until they are dry and ventilated.

A: Chlorpyrifos can be used on fruits and vegetables but requires proper application and adherence to pre-harvest intervals to ensure safety. Residues on produce should be within established safe limits. Always follow manufacturer instructions and local regulations.

A: When chlorpyrifos gets into the soil, it can take weeks to years for all of the chlorpyrifos to break down. Chlorpyrifos in the soil may be broken down by ultraviolet light and chemicals in the soil. Soil temperature and pH level may also affect how long chlorpyrifos stays in the soil. Chlorpyrifos will break down more slowly in acidic soils than in basic soils.

A: Chlorpyrifos is very toxic to many bird species such as grackles and pigeons, and it is moderately toxic to others such as mallard ducks. Mallard ducks fed chlorpyrifos laid fewer eggs and raised fewer ducklings. The eggshells were thinner than normal, and many of the young ducklings died. Of all birds, robins are most often found dead following accidents involving chlorpyrifos use.