Tag: biopesticide

Questions Related to biopesticide

Biopesticides includes

zoology sustainable agriculture microbes and farming biopesticide environmental protection

  1. Bioherbicides

  2. Bioinsecticides

  3. Bioherbicides and bioinsecticides

  4. Bioherbicides, bioinsecticides and biofertilizers

Show answer
Correct Option: C

A natural insecticide obtained from plants is

zoology sustainable agriculture microbes and farming biopesticide environmental protection

  1. Azadirachtin

  2. Rotenone

  3. Nicotine, pyrethrum and cinerin

  4. All of the above

Show answer
Correct Option: D

A common biocontrol agent for plant diseases is?

zoology sustainable agriculture microbes and farming biopesticide environmental protection

  1. Bacillus thuringiensis

  2. Glomus

  3. Trichoderma

  4. Baculovirus

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Correct Option: C
Explanation:

Trichoderma fungus is a common biological control for a range of plant pathogens.

Correct answer-C

Thurioside is proteinaceous toxin obtained from

zoology sustainable agriculture microbes and farming biopesticide environmental protection

  1. Biofertilizer

  2. Green manure

  3. Bacterial origin

  4. Farmyard manure

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Correct Option: C
Explanation:

Thurioside is obtained from bacteria Bacillus thuringiensis, used as a bioinsecticide.

Correct answer-C.

Which bacterium is used extensively as biopesticide?

zoology sustainable agriculture microbes and farming biopesticide environmental protection

  1. Bacillus subtilis

  2. Streptococcus lactis

  3. Bacillus thuringienesis

  4. Lactobacillus acidophilus

Show answer
Correct Option: C
Explanation:

Bacillus thuringienesis  is a potent agent that can function as a biopesticide.

Correct answer-C

Which is not used as a biopesticide?

zoology sustainable agriculture microbes and farming biopesticide environmental protection

  1. Xanthomonas campesteris

  2. Bacillus thuringiensis

  3. Trichoderma harzianum

  4. Nucleo polyhedro virus

Show answer
Correct Option: A
Explanation:

Xanthomonas campesteris is bacterial species that causes a variety of plant diseases,whereas the rest can be used as biopesticide.

Correct answer-A

Viruses of genus Nucleopolyhedrovirus are employed as.

zoology sustainable agriculture microbes and farming biopesticide environmental protection

  1. Gobar gas producers

  2. Biological control agents

  3. Anaerobic sludge digesters

  4. Antibiotics

  5. Atmospheric nitrogen fixing agents

Show answer
Correct Option: B
Explanation:

Viruses of genus Nucleopolyhedrovirus , Baculoviruses are species-specific narrow spectrum biocontrol agents for plant pathogens.

Correct answer-B

Microbe used for biocontrol of pest butterfly caterpillars is?

zoology sustainable agriculture microbes and farming biopesticide environmental protection

  1. Bacillus thuringiensis

  2. Streptococcus species

  3. Trichoderma species

  4. Saccharomyces cerevisiae

Show answer
Correct Option: A
Explanation:

Bacillus thuringiensis are regarded as excellent biocontrol agents for butterfly caterpillars, and hence used as bioinsecticide.

Correct answer-A

Which of the following statements is correct with regard to biocontrol agents ?

zoology sustainable agriculture microbes and farming biopesticide environmental protection

  1. Ladybird and dragonflies are used to get rid of aphids and mosquitoes respectively.

  2. Bacillus thuringiensis bacteria are used to control butterfly caterpillars.

  3. Trichoderma species are used to control several plant pathogen.

  4. All of these

Show answer
Correct Option: D
Explanation:
Ladybird and dragonflies are used to get rid of aphids and mosquitoes respectively. Bacillus thuringiensis bacteria are used to control butterfly caterpillars. Trichoderma species are used to control several plant pathogen.. 
So, the correct option is 'All of these'

Statement 1 : Biocontrol refers to the use of biological methods for controlling plant diseases and pests.
Statement 2 : Use of biocontrol measures will greatly reduce our dependence on toxic chemicals and pesticides.

zoology sustainable agriculture microbes and farming biopesticide environmental protection

  1. Both statements 1 and 2 are correct.

  2. Statement 1 is correct but statement 2 is incorrect.

  3. Statement 1 is incorrect but statement 2 is correct.

  4. Both statements 1 and 2 are incorrect.

Show answer
Correct Option: A
Explanation:
Biocontrol refers to the use of biological methods for controlling plant diseases and pests. Use of biocontrol measures will greatly reduce our dependence on toxic chemicals and pesticides.
So, the correct option is 'Both statements 1 and 2 are correct'