Weed Science Part 3
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Question No. 1
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What is the global consumption order of pesticides?
A.
Fungicides > Insecticides > Herbicides
B.
Insecticides > Fungicides > Herbicides
C.
Herbicides > Insecticides > Fungicides
D.
Herbicides > Fungicides > Insecticides
Question No. 2
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What is the pesticide consumption order in India?
A.
Herbicides > Insecticides > Fungicides
B.
Insecticides > Fungicides > Herbicides
C.
Fungicides > Herbicides > Insecticides
D.
Insecticides > Herbicides > Fungicides
Question No. 3
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Which crop in India consumes the largest amount of pesticides?
A.
Rice
B.
Cotton
C.
Vegetables
D.
Wheat
Question No. 4
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Which crop in India has the highest herbicide consumption?
A.
Rice
B.
Wheat
C.
Tea
D.
Cotton
Question No. 5
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Which herbicide is the most widely manufactured and consumed in India?
A.
Atrazine
B.
Glyphosate
C.
Isoproturon
D.
2,4-D
Question No. 6
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What is the per hectare consumption of pesticides in India?
A.
0.5 kg/ha
B.
1 kg/ha
C.
2 kg/ha
D.
5 kg/ha
Question No. 7
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Which country has the highest per hectare consumption of pesticides in the world?
A.
India
B.
Japan
C.
USA
D.
China
Question No. 8
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What is the per hectare consumption of herbicides in India?
A.
40 g/ha
B.
100 g/ha
C.
200 g/ha
D.
500 g/ha
Question No. 9
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Which of the following is NOT a class of herbicides based on chemistry?
A.
Aliphatics
B.
Amides
C.
Organophosphates
D.
Bipyridilliums
Question No. 10
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Which herbicide is non-selective and translocated?
A.
2,4-D
B.
Glyphosate
C.
Fluchloralin
D.
Atrazine
Question No. 11
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Which herbicide is a systemic foliage-applied herbicide?
A.
Fluchloralin
B.
Sulfosulfuron
C.
Paraquat
D.
Pendimethalin
Question No. 12
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Which herbicide is volatile and used as PPI?
A.
2,4-D
B.
Fluchloralin
C.
Glyphosate
D.
Paraquat
Question No. 13
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What is the full form of 2,4-D?
A.
2,4-dichlorophenoxyacetic acid
B.
2,4-dichlorophenoxy acetic acid
C.
2,4-dichlorophenoxy acetyl acid
D.
2,4-dichlorophenoxy acetic acid
Question No. 14
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Which of the following is NOT a method of herbicide application based on time?
A.
Pre-Plant Incorporation (PPI)
B.
Pre-emergence
C.
Post-emergence
D.
Lay-by application
Question No. 15
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Which herbicide is typically applied pre-plant incorporated (PPI)?
A.
Glyphosate
B.
Fluchloralin
C.
2,4-D
D.
Paraquat
Question No. 16
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Which herbicide is applied after sowing but before emergence of the crop and weeds?
A.
Pre-emergence
B.
Post-emergence
C.
PPI
D.
Lay-by application
Question No. 17
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Which herbicide is applied after the emergence of the crop and weeds?
A.
Pre-emergence
B.
Post-emergence
C.
PPI
D.
Lay-by application
Question No. 18
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Which of the following is a contact herbicide?
A.
2,4-D
B.
Paraquat
C.
Fluchloralin
D.
Atrazine
Question No. 19
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Which of the following is a systemic herbicide?
A.
Paraquat
B.
Diquat
C.
Fluchloralin
D.
All of the above
Question No. 20
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Which of the following is a selective herbicide?
A.
Glyphosate
B.
Paraquat
C.
2,4-D
D.
All of the above
Question No. 21
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Which of the following is a non-selective herbicide?
A.
2,4-D
B.
Atrazine
C.
Glyphosate
D.
Isoproturon
Question No. 22
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Which of the following is a trade name for Atrazine?
A.
Atratex
B.
Lasso
C.
Ronak
D.
Stamp F-34
Question No. 23
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Which of the following is a trade name for Alachlor?
A.
Lasso
B.
Arelon
C.
Bolero
D.
Gramoxone
Question No. 24
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Which herbicide has both contact and systemic action?
A.
2,4-D
B.
Atrazine
C.
Glyphosate
D.
Paraquat
Question No. 25
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Which herbicides are generally used in soybean?
A.
Metribuzin and Alachlor
B.
2,4-D and Isoproturon
C.
Glyphosate and Paraquat
D.
Fluchloralin and Pendimethalin
Question No. 26
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What is the difference between weedicides and herbicides?
A.
Weedicides are a broader term than herbicides.
B.
Herbicides are a broader term than weedicides.
C.
Weedicides are restricted to certain types of weeds.
D.
There is no difference.
Question No. 27
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How long does 2,4-D remain residual in the soil?
A.
1-2 weeks
B.
3-4 weeks
C.
1-2 months
D.
6-12 months
Question No. 28
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How long do Triazines remain residual in the soil?
A.
3-4 weeks
B.
1-2 years
C.
6-12 months
D.
Less than a week
Question No. 29
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Which herbicides are considered non-residual?
A.
Paraquat and Diquat
B.
2,4-D and Atrazine
C.
Fluchloralin and Pendimethalin
D.
Isoproturon and Sulfosulfuron
Question No. 30
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Which family does Lantana camara belong to?
A.
Graminae
B.
Verbenaceae
C.
Papavaraceae
D.
Scrophulariaceae
Question No. 31
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Which family does Striga spp. belong to?
A.
Graminae
B.
Verbenaceae
C.
Papavaraceae
D.
Scrophulariaceae
Question No. 32
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Which family does Argemone Mexicana belong to?
A.
Graminae
B.
Verbenaceae
C.
Papavaraceae
D.
Scrophulariaceae
Question No. 33
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Which family does Echinochloa spp. belong to?
A.
Graminae
B.
Verbenaceae
C.
Papavaraceae
D.
Scrophulariaceae
Question No. 34
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Which of the following is the largest pesticide-consuming crop in India?
A.
Vegetables
B.
Wheat
C.
Rice
D.
Cotton
Question No. 35
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Which herbicide is the largest manufacturer and most consumed in India?
A.
Atrazine
B.
Isoproturon
C.
Glyphosate
D.
Metribuzin
Question No. 36
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Which of the following countries has the highest per hectare pesticide consumption in the world?
A.
China
B.
USA
C.
India
D.
Japan
Question No. 37
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Which herbicide is classified as non-selective and translocated?
A.
Glyphosate
B.
Paraquat
C.
2, 4-D
D.
Pendimethalin
Question No. 38
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Which herbicide is used as a Pre-Plant Incorporation (PPI) and is volatile in nature?
A.
Fluchloralin
B.
Glyphosate
C.
Paraquat
D.
2, 4-D
Question No. 39
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Which of the following herbicides is a selective foliage-applied herbicide?
A.
Propanil
B.
Glyphosate
C.
2, 4-D
D.
Paraquat
Question No. 40
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Which of these herbicides is an example of a systemic, foliage-applied herbicide?
A.
Paraquat
B.
Sulfosulfuron
C.
Fluchloralin
D.
Metribuzin
Question No. 41
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Which of the following herbicides is soil-applied and a systemic type?
A.
Pendimethalin
B.
2, 4-D
C.
Isoproturon
D.
Glyphosate
Question No. 42
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Which herbicide has a residuality period of 3-4 weeks?
A.
2, 4-D
B.
Glyphosate
C.
Triazines
D.
Metribuzin
Question No. 43
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Which of the following is considered a non-residual herbicide?
A.
Metribuzin
B.
Paraquat
C.
Sulfosulfuron
D.
Fluchloralin
Question No. 44
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Which weed belongs to the family 'Verbenaceae'?
A.
Lantana camara
B.
Echinochola spp.
C.
Argemone Mexicana
D.
&riga spp.
Question No. 45
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Which herbicide group does Alachlor belong to?
A.
Bipyridilliums
B.
Thiocarbamates
C.
Amides
D.
Dinitro anilines
Question No. 46
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Which of the following herbicides is generally used for soybean?
A.
Metribuzin
B.
Isoproturon
C.
Glyphosate
D.
2, 4-D
Question No. 47
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Which of the following herbicides is used to control weeds after the crop has emerged?
A.
Pendimethalin
B.
Fluchloralin
C.
Propanil
D.
2, 4-D
Question No. 48
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Which herbicide is a contact type and commonly used for weed control?
A.
Sulfosulfuron
B.
Paraquat
C.
Metribuzin
D.
Glyphosate
Question No. 49
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Which herbicide is used for weed control in rice fields?
A.
Fluchloralin
B.
Isoproturon
C.
Sulfosulfuron
D.
Paraquat
Question No. 50
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Which herbicide group does Sulfosulfuron belong to?
A.
Triazines
B.
Amides
C.
Sulfonylureas
D.
Phenoxy acids
Question No. 51
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Which herbicide is known for being used in wheat fields, among others, for herbicide control?
A.
Metribuzin
B.
Isoproturon
C.
Glyphosate
D.
2, 4-D
Question No. 52
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Which of the following is the largest consumer of herbicides in India?
A.
Rice
B.
Cotton
C.
Wheat
D.
Tea
Question No. 53
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Which of the following weed species belongs to the Gramineae family?
A.
Echinochola spp.
B.
Lantana camara
C.
Argemone Mexicana
D.
&riga spp.
Question No. 54
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Which herbicide has both contact and systemic action depending on its mode of application?
A.
Atrazine
B.
Alachlor
C.
Glyphosate
D.
Metribuzin
Question No. 55
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Which herbicide is typically applied before the emergence of crops and weeds?
A.
Pendimethalin
B.
Paraquat
C.
Sulfosulfuron
D.
Glyphosate
Question No. 56
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Which herbicide is a systemic, foliage-applied herbicide for controlling broadleaf weeds?
A.
2, 4-D
B.
Metribuzin
C.
Glyphosate
D.
Isoproturon
Question No. 57
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Which herbicide group does Metribuzin belong to?
A.
Triazines
B.
Sulfonylureas
C.
Amides
D.
Ureas
Question No. 58
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Which of the following herbicides is used to control perennial weeds in agriculture?
A.
Paraquat
B.
Glyphosate
C.
Metribuzin
D.
Sulfosulfuron
Question No. 59
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Which of the following herbicides has the longest residual effect?
A.
Triazines
B.
Sulfosulfuron
C.
2, 4-D
D.
Glyphosate
Question No. 60
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Which of the following herbicides is mainly used for weed control in tea cultivation?
A.
Pendimethalin
B.
Isoproturon
C.
Glyphosate
D.
Fluchloralin
Question No. 61
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Which herbicide group does Benthiocarb belong to?
A.
Thiocarbamates
B.
Amides
C.
Triazines
D.
Sulfonylureas
Question No. 62
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Which of the following is a characteristic of contact herbicides?
A.
Only kill the part of the plant they contact
B.
Act systemically
C.
Are persistent in the soil
D.
Are absorbed and translocated within the plant
Question No. 63
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Which herbicide is most commonly used for weed control in rice?
A.
Isoproturon
B.
Sulfosulfuron
C.
Glyphosate
D.
Metribuzin
Question No. 64
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Which of the following is an example of a non-selective herbicide?
A.
Glyphosate
B.
Metribuzin
C.
2, 4-D
D.
Sulfosulfuron
Question No. 65
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Which of these herbicides is a selective herbicide, commonly used for broadleaf weed control in cereal crops?
A.
2, 4-D
B.
Glyphosate
C.
Metribuzin
D.
Propanil
Question No. 66
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Which family does the weed Argemone Mexicana belong to?
A.
Papavaraceae
B.
Scrophulariaceae
C.
Verbenaceae
D.
Gramineae
Question No. 67
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Which of the following herbicides is classified under 'Bipyridilliums'?
A.
Paraquat
B.
Metribuzin
C.
Glyphosate
D.
Fluchloralin
Question No. 68
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Which herbicide is an example of a foliage-applied, selective herbicide?
A.
2, 4-D
B.
Pendimethalin
C.
Glyphosate
D.
Metribuzin
Question No. 69
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Which of the following herbicides is known for controlling aquatic weeds?
A.
Paraquat
B.
Sulfosulfuron
C.
Fluchloralin
D.
Glyphosate
Question No. 70
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Which of the following herbicides is used in wheat fields to control grasses?
A.
Isoproturon
B.
Metribuzin
C.
Pendimethalin
D.
Glyphosate
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