Download PTU B.Voc 2020 Dec 1st Sem 75650 Chemistry Of Agrochemicals Question Paper

Download PTU ( I.K.Gujral Punjab Technical University (IKGPTU)) Bachelor of Vocational Education (B. Voc) 2020 December 1st Sem 75650 Chemistry Of Agrochemicals Previous Question Papers

Roll No.
Total No. of Pages : 02
Total No. of Questions : 08
B.Voc. (Agriculture) (2018 & Onwards) (Sem.?1)
CHEMISTRY OF AGROCHEMICALS
Subject Code : BVAG-102-18
M.Code : 75650
Time : 2 Hrs. Max. Marks : 30
INST RUCT IONS T O CANDIDAT ES :
1 .
Attempt any FIVE question (s), ea ch que stion c arrie s 6 ma rks .
Q1. a. Define Botanical Insecticides. What are their advantages and limitations over Chemical
measures?
b. Enlist any 4 Botanical bioactive compounds and their source.
Q2. Enlist precautions that needs to be taken when we are using fungicides. Name any 3 fungal
diseases, their causative organism and the crop infected by them.
Q3. What measures could be used for protection against stored grain insect pests.
Q4. Name any 4 weeds that could affect wheat crop. Suggest suitable measures to control these
weeds.
Q5. What are the structure, usage and mode of action of following :
a. Glyphosate
b. Carboxin
Q6. a. Write a short note on Pyrethrum.
b. How will you manage stemborers and leaffolders in a crop field?
Q7. Discuss in details about synthetic organic insecticides.
Q8. Discuss briefly :
a. Plant growth regulators
b. Biomagnification of agrochemicals in food chain
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