Environmental Studies · Biology

Pesticides and Pest Control

1,208 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

DDT - a widely used pesticide is a/an

  1. organochlorine

  2. organophosphate

  3. pyrethroid

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

DDT (dichlorodiphenyltrichloroethane) is a synthetic organochlorine compound that was historically used as a potent insecticide.

Multiple choice

Integrated pest management includes

  1. biological methods

  2. mechanical methods

  3. chemical pesticides

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 Integrated pest management (IPM), is a broad-based approach that integrates practices for economic control of pests using three methods - biological methods, mechanical methods and chemical pesticides.

Multiple choice

Agrochemicals are

  1. pesticides

  2. fertilisers

  3. growth regulators

  4. all of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Agrochemicals are chemical products used in agriculture to improve crop production. This category includes pesticides, fertilizers, and plant growth regulators.

Multiple choice

β-Nitropropionic acid is used as

  1. dye

  2. mitochondrial inhibitor

  3. natural insecticide

  4. explosive

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Beta-nitropropionic acid is a mycotoxin, a potent mitochondrial inhibitor toxic to humans.

Multiple choice

Which of the following sets is of biodegradable insecticides?

  1. Cypermethrin, Aldrin and Methylparathion

  2. Cypermethrin, Permethrin and Methoxychlor

  3. Bifenthrin, Permethrin and dieldrin

  4. Malathion, Parathiona and Pyrethrin

  5. Parathion, Aldrin and Methylparathion
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This option is correct because all are biodegradable insecticides.

Multiple choice

Which of the following is not a weedicide?

  1. 2,4-dichlorophenoxy acetic acid

  2. Atrazine

  3. Nitrophosphate

  4. Fluchloralin

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

This is the correct option. Nitrophosphate is a complex fertiliser and not a weedicide.

Multiple choice

Which of the following sets is of non -biodegradable insecticide?

  1. Dieldrin, Permethrin and Aldrin

  2. Aldrin, Dieldrin and BHC

  3. Parathion, Malathion and Methoxychlor

  4. Malathion, BHC and Methoxychlor

  5. DDT, BHC and Parathion
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This option is correct because aldrin, dieldrin and BHC are nonbiodegradable insecticides.

Multiple choice

Methyl Engenol and Bombykol are generally used as

  1. germicide

  2. insect repellents

  3. pheromones

  4. insecticides
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Another way to get rid of insects is to use pheromones. These chemicals help induce the mating urge and attract insects of opposite sex. Methyl engenol attracts the oriental fruit fly. 

Multiple choice

To which category does rotenone belong?

  1. Bioherbicide

  2. Insect hormone

  3. Natural herbicide

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

Rotenone is a naturally occurring compound found in the roots of several tropical plants and is used as a broad-spectrum insecticide.

Multiple choice

Bacillus thuringiensis is used to control

  1. bacterial pathogens

  2. fungal pathogens

  3. nematodes

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

Bacillus thuringiensis (Bt) produces toxins that are specifically lethal to certain insect pests, making it a valuable tool in biological pest control.

Multiple choice

Herbicides are used for the elimination of

  1. chromosome

  2. plant diseases

  3. aphids

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

Herbicides are chemical substances specifically designed to kill or inhibit the growth of unwanted plants, commonly known as weeds.