Download PTU B.Sc-Agriculture 2020 March 7th Sem 74865 Pesticides And Plant Protection Equipment Question Paper

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Roll No. EEEEEEEE [ ] Total No. of Pages : 02

Total No. of Questions : 09

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B.Sc. (Agriculture) (Sem.-7)

PESTICIDES AND PLANT PROTECTION EQUIPMENT

Subject Code : BSAG-PP 703

M.Code : 74865

Time : 3 Hrs. Max. Marks : 60

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

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Q1. Define the following :

1. Dust Formulations
2. Median Lethal Dose (LD50)
3. Repellents
4. Insecticide resistance

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5. Resurgence
6. Biomagnification
7. Surfactants
8. Insecticide residues
9. Antidotes

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10. Synergism

SECTION-B

Q2. Write a short note on chemosterilants and their use in pest management.

Q3. What are hormones? Discuss their role in pest management.

Q4. Discuss various types of nozzles used for application of pesticides.

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Q5. Write a short note on ULV sprays.

Q6. Classify the various insecticide based on their mode of action.

SECTION-C

Q7. Define an insecticide and classify various insecticides according to their chemical nature.

Q8. Discuss in detail the factors affecting the toxicity of pesticides.

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Q9. Draw a well labeled diagram of Knapsac sprayer and write about its principles of working.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.