Environmental Studies · Biology

Pesticides and Pest Control

1,236 Questions

Pesticides and Pest Control focuses on the management of invasive species through chemical, biological, and cultural methods. It includes topics like integrated pest management, herbicide targets, and the ecological impacts of toxic chemicals. This subject is frequently tested in environmental science and agriculture exams.

Integrated Pest ManagementBiological Control AgentsHerbicide MechanismsChemical Pesticide ToxicityGenetic Pest ResistanceInvasive Species Management

Pesticides and Pest Control Questions

Multiple choice

Urea is used as

  1. food

  2. medicine

  3. pesticide

  4. fertilizer
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Urea is a highly concentrated nitrogenous compound. Because nitrogen is a critical nutrient for plant growth, urea is primarily manufactured and used globally as a chemical fertilizer.

Multiple choice

BHC (Benzene Hexa Chloride) is a/an:

  1. Herbicide

  2. Fungicide

  3. Insecticide

  4. Weedicide

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Benzene Hexachloride (BHC), also known as Lindane, is an organochlorine chemical that has been widely used as an agricultural insecticide and a pharmaceutical treatment for lice and scabies.

Multiple choice

Which of the following statement(s) is/are false?

A. Etoposide is an anticancer agent extracted from Camptotheca sp. B. Ulmus wallichiana is a timber yielding plant located throughout India. C. Pyrethrin has insecticidal activity derived from Chrysanthemum cinerariifolium.

  1. A only

  2. B only

  3. C only

  4. A and B

  5. B and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A. Two chemotherapy drugs, Etoposide and Teniposide, are derived from toxins found in Podophyllum peltatum. The cancer treatment drug Topotecan is an extract of Camptotheca sp. B. Ulmus wallichiana is a timber yielding plant located throughout India. It is moderately hard and strong. It is used for door and window frames, carts and other purposes. C. The Pyrethrins are a pair of natural organic compounds derived from Chrysanthemum cinerariifolium that have potent insecticidal activity. Hence, only statement A is false.

Multiple choice

Where is the major use of allethrin?

  1. In household insecticides

  2. In glass manufacture

  3. In steel manufacture

  4. In paints and varnishes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Allethrin is a synthetic pyrethroid used primarily as an active ingredient in household insecticides, such as mosquito coils and sprays.

Multiple choice

Directions: The following item consists of a stem followed by four words. One of the four words can be used as a substitute for the stem. Choose the correct option.

A substance that is toxic to plants, used to destroy unwanted vegetation

  1. Germicide

  2. Herbicide

  3. Pesticide

  4. Insecticide

  5. .
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Here, herbicide is the correct option. Germicide is the medicine that kills germs, pesticide is the medicine to kill pests and insecticide is the medicine to kill insects.

Multiple choice

PME is a/an _________.

  1. pesticide

  2. enzyme

  3. insecticide

  4. plant growth regulator
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

PME (Pectin methylesterase) is an enzyme that catalyzes the de-esterification of pectin. It is widely used in the food industry.

Multiple choice

Find the incorrect match.

  1. Biopesticides - Neem leaves and turmeric

  2. Green manure - Sun hemp

  3. Biofertiliser - Cow dung

  4. Vermicompost - Blue green algae

  5. None of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is an incorrect match as vermicompost is prepared by the actions of earthworms and not of blue green algae.

Multiple choice

Xanthium and parthenium are commonly known as

  1. weeds

  2. biopesticides

  3. fungicides

  4. herbicides

  5. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct answer as xanthium (gokhroo) and parthenium (gajar ghas) are examples of weeds.

Multiple choice

Although the lesser cornstalk borer is widely distributed, control of them is necessary only in the South.

  1. the lesser cornstalk borer is widely distributed, control of them is

  2. widely distributed, measures to control the lesser cornstalk borer are

  3. widely distributed, lesser cornstalk borer control is

  4. the lesser cornstalk borer is widely distributed, measures to control it are

  5. it is widely distributed, control of the lesser cornstalk borer is
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The original sentence uses 'them' to refer to a singular noun (borer). Option D corrects this by using 'it' to refer back to the singular subject.

Multiple choice

Which of the following is an example of bioherbicide?

  1. Phytophthora palmivora

  2. Stick insect

  3. 2-4 D

  4. Cinerin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Phytophthora palmivora is a fungus used as a mycoherbicide to control specific weeds. 2-4 D is a synthetic chemical herbicide, not a bioherbicide.