Disease Vector Control: Housefly

Good health helps people to lead a productive life socially and economically. Any derangement of health or a bodily disorder is called a disease.

A vector is an organism that transmits disease causing pathogens (bacteria, virus or other parasite) to the host. Housefly is a very common disease vector.

Housefly (Muscadomestica) is a cosmopolitan insect commonly found in the houses. The average length of a housefly is 6-7mm and its body is divided into head, thorax and abdomen.

The breeding season of houseflies lasts from April to September. Their life cycle is divided into 4 stages, namely egg, larva, pupa and adult.

Houseflies feed on fecal matter, discharge from sores and wounds, and decaying matter like spoiled fish, meat and egg. The feeding habits of a housefly make it a suitable disease vector for spreading various diseases like dysentry, typhoid, cholera, etc.Houseflies act as natural scavengers too; as they consume left over food.

Houseflies spread diseases through their hairy body and legs by picking up germs from dirty places and carry them along. They also contaminate food by moistening the foodstuff by their saliva or by vomiting the swallowed foodstuff. Houseflies spread various disease causing germs by directly coming in contact with a healthy person.

The various methods used to control housefly population are personal protection method, biological method and chemical method.

To Access the full content, Please Purchase

  • Q1

    Which of the following insects controls the housefly population naturally?

    Marks:1
    Answer:

    Fire ant

    Explanation:

    Parasitic wasp and fire ant control the housefly population naturally. They seek and kill the immature houseflies. They do not harm animals or humans.

    View Answer
  • Q2

    Which of the following diseases is not transmitted by the houseflies?

    Marks:1
    Answer:

    AIDS

    Explanation:

    The feeding habits of a housefly make it a suitable disease vector for spreading various diseases like dysentery, typhoid, cholera, etc. AIDS is not transmitted by the houseflies.

    View Answer
  • Q3

    The life cycle of a housefly is divided into how many stages?

    Marks:1
    Answer:

    4

    Explanation:

    The life cycle of a housefly is divided into 4 stages namely egg, larva, pupa and adult.

    View Answer
  • Q4

    The proboscis of a housefly performs which of the following functions?

    Marks:1
    Answer:

    Sucking

    Explanation:

    The proboscis of a housefly is used for sucking liquid from food substances.

    View Answer
  • Q5

    Which of the following is the scientific name of the housefly?

    Marks:1
    Answer:

    Musca domestica

    Explanation:

    Musca domestica is commonly known as a housefly. It is a cosmopolitan insect commonly found in houses. The housefly is a very common disease vector.

    View Answer