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 zoology soil pollution industrial chemicals and their harmful effects toxic wastes and their effects soil pollution-causes

Which of the following weedicide can defoliate the complete forest?

  1. 2, 4-D

  2. ABA

  3. AMO 1618

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Weedicides or herbicides are weed killers or pesticides used to control weeds in agricultural farms. AMO 1618  or (2-isopropyl-5-methyl-4-trimethylammonium chloride)-phenyl-1-piperidine carboxylate is an  inhibitor of gibberellin biosynthesis which leads to retarded germination. Higher concentrations will lead to  reduced sensitivity of seeds.

Multiple choice zoology origin of life and organic evolution neo darwinism mechanism of evolution other theories of evolution

Find out the organo chlorine among the following  

  1. malathion, fenitrothion, parathion

  2. carbofuran, propoxur, aldicarb

  3. pyrethrin, triazines, simazine

  4. DDT, BHC, dieldrin, endosulphan.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

DDT is an organo chlorine. Its highly hydrophobic, colourless, crystalline solid with a weak chemical odor. BHC (Benzene hexa chloride) is another organo chlorine followed by dieldrin and endosulphan. 

Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

Which of the following is an insecticide?

  1. Aspirin

  2. Lindane

  3. DDT

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

DDT (dichlorodiphenyltrichloroethane) is an organo chlorine insecticide, which is a colourless, crystalline solid, tasteless and almost odorless chemical compound. 

Lindane is an organochlorine chemical variant of hexachlorocyclohexane, used as agricultural insecticide. 

Multiple choice chemistry chemistry in daily life antimicrobials and antifertility drugs therapeutic action of different classes of drugs drugs and their classification

Which of the following is an insecticide?

  1. Bakelite

  2. Aspirin

  3. DDT

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

DDT (dichlorodiphenyltrichloroethane) is an organochlorine insecticide which is a colorless, crystalline solid, tasteless and almost odourless chemical compound.

Trinitrotoluene (2,4,6-trintrotoluene, TNT) is an extensively used explosive, which has been detected in soil and water at military sites and at munitions manufacturing and training operations.

Option C is correct.

Multiple choice botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

Strategy used to prevent nematode infection of tobacco roots is _______________.

  1. Use of agrochemicals

  2. Bt toxin gene

  3. Gene mutation

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

RNA interference (RNAi) is a biological process where RNA molecules inhibit gene expression. In the case of nematode infection in tobacco, RNAi is used to silence specific genes required by the nematode to survive.

Multiple choice economics environment and sustainable development need for sustainable development environmental economics sustainable development

What are some of the methods of biopest control?

  1. Use of pesticides based on plant products

  2. Mixed cropping

  3. Growing different crops in consecutive years on the same land

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

Biopest control includes a variety of methods like using natural plant-based pesticides and crop rotation (mixed/consecutive cropping) to disrupt pest cycles.

Multiple choice economics environment and sustainable development need for sustainable development environmental economics sustainable development

What are the negative side effects of bio pest control?

  1. Could effect overall bio diversity of the region

  2. Could suppress growth of crop

  3. Could end up attacking other species as well

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

Biological control agents can have unintended consequences, such as disrupting local biodiversity or attacking non-target species.

Multiple choice

Neonicotinoid pesticides bind to receptors and have which of the following effects on insects:

  1. Activate synaptic transmission at cholinergic synapses

  2. Activate synaptic transmission at adrenergic synapses

  3. Block synaptic transmission at cholinergic synapses

  4. Block synaptic transmission at adrenergic synapses
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Neonicotinoids are agonists that bind to nicotinic acetylcholine receptors. By binding to these receptors, they cause overstimulation and eventually block synaptic transmission at cholinergic synapses in insects.

Multiple choice

How can harmful pesticides change a habitat?

  1. They can kill a farmer’s crops.

  2. They can destroy the surrounding habitat.

  3. They can introduce new pests to the habitat.

  4. They can harm animals in the habitat’s food web.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pesticides are designed to target specific pests, but they often accumulate in the environment and affect non-target species. This bioaccumulation can disrupt entire food webs by harming predators and other animals that consume contaminated organisms.

Multiple choice

Compounds used to control various species of parasitic worms

  1. roughages

  2. anthelmintics

  3. concentrate

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

Anthelmintics are chemical compounds or medications used to expel or destroy parasitic worms (helminths) in the body of animals or humans. Roughages and concentrates are types of feed, while additives are general feed ingredients.

Multiple choice

Using pheromones and hormones to disrupt insect mating cycles is known as--

  1. Monoculture

  2. FIFRA

  3. Genetically modified organisms (GMOs)

  4. Integrated Pest Management (IMP)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Integrated Pest Management (IPM) uses biological controls like pheromones to disrupt insect mating cycles, reducing the need for chemical pesticides. This is an ecologically friendly approach that targets specific pests while minimizing environmental harm.

Multiple choice

Crops that are engineered so that pests do not eat them are known as--

  1. Hydroponics

  2. Frankenfoods

  3. Geneticall modified organisms (GMOs)

  4. Organically grown crops
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

GMOs (Genetically Modified Organisms) are crops engineered with traits like pest resistance (Bt corn) or herbicide tolerance. This reduces pest damage and chemical use. Note: option C has a typo (should be 'Genetically' not 'Geneticall').