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Agricultural Science
WAEC 1998
Agricultural Science 1998 WAEC Past Questions
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31
The major pest of maize in Southern Nigeria is called
A.
budworm
B.
stem borer
C.
leaf worm
D.
aphid
E.
mealy bug
View Answer & Discuss
WAEC 1998
32
Which of the following insect pests of crops is usually controlled by fumigation?
A.
bean weevil
B.
capsid bug
C.
cotton stainer
D.
grasshopper
E.
yam beetle
View Answer & Discuss
WAEC 1998
33
A major symptom f onion/twister is
A.
appearance of dark brown spots on leaves
B.
motting of leaves
C.
rottening of roots
D.
rottening of bulds
E.
premature drying of leaves
View Answer & Discuss
WAEC 1998
34
Gummosis is caused by a
A.
fungus
B.
virus
C.
bacterium
D.
nematoad
E.
protozoan
View Answer & Discuss
WAEC 1998
35
Which of the following is not true about the aims of crop improvement? Production of
A.
high yielding variety of cowpea
B.
disease resistant varieties of citrus
C.
thick pericap and rish oil palm fruits
D.
tall frowing leafty varieties of maize
E.
fast growing rice with early fruiting
View Answer & Discuss
WAEC 1998
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