Disease Carrier Control: Cockroaches and Rats

Health is a state of complete physical, mental and social wellbeing, and not merely the absence of disease.

Any abnormal condition of the body or deviation from its normal functioning is called disease. A disease can spread from one person to another via insects (vectors) or by insanitary conditions.

Disease-carrier or vector is an organism that acts as an agent or intermediate carrier of disease causing pathogen.  Insects such as mosquito, housefly, cockroach and rodents, etc., act as vectors for different diseases.

Cockroaches transfer germs, which are responsible for various allergic reactions such as asthma, dermatitis, dysentery etc.

There are two methods for the control of cockroaches:
a)    Chemical control: It is the control of disease vectors with the help of chemical compounds.
b)    Non-chemical control: It is the control of disease vectors without the use of chemical compounds.

Chemical control of cockroaches includes the use of chemical dusts, bait or spray, etc. Non-chemical methods include preventing their access to shelter, food and water around the home.

Rats infest our home and neighbourhood in search of food.Food stuff and other edible items spilled or left on kitchen counters, floor and tables attracts them.

By various methods, like by keeping the yards clean, by keeping garbage lids tightly closed, by using steel containers to keep food material etc. we can get rid of rats.

They can be controlled chemically as well as by non-chemical methods.A chemical method for controlling rats includes the use of rat poison while rat traps are used for non-chemicalmethod.

Use of rat poison is not recommended for rat control as children or pets may eat it by mistake. Also rats might die anywhere inside the house (attic or walls), thereby causing a foul smell.

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  • Q1

    What we should do if rat gets die in house?

    Marks:1
    Answer:

    Wrap it in a paper and throw in dustbin

    Explanation:

    If rat dies inside house, we should wrap the dead rat in a paper or plastic bag before throwing them in the garbage bin.

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  • Q2

    Why we should avoid using rat poison in house?

    Marks:1
    Answer:

    If rat dies, a foul smell is caused inside the house

    Explanation:

    Rat poison must not be used for the control of rats as they might die anywhere inside the house, thereby causing a foul smell.

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  • Q3

    Which of the following compounds is found in cockroach bait?

    Marks:1
    Answer:

    Sulfuramid

    Explanation:

    Cockroach baits contain insecticidal compounds like sulfuramid and avermectin. They should be used in all areas where cockroaches are seen, especially in the kitchens and the bathrooms.

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  • Q4

    Which of the following should be avoided while spraying chemicals to control cockroaches?

    Marks:1
    Answer:

    Electrical outlets

    Explanation:

    The sprays for cockroach control must not be used near the electrical outlets. Also avoid using them near the eating area or in the kitchen while preparing food.

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  • Q5

    Which of the following can be used to control cockroaches?

    Marks:1
    Answer:

    Boric acid

    Explanation:

    Boric acid is used to control cockroaches. Application of its thin film in the wall cracks, crevices, voids and under the refrigerator, stoves and sinks prevent the entry of cockroaches.

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