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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
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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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