Search SchoolNGR

Saturday, 20 June 2026
Register . Login

Agricultural Science Past Questions and Answers

Jamb Agricultural Science Questions

Question 286:
Root-knot disease of tomato is caused by
  • A Virus
  • B Nematode
  • C Bacterium
  • D Fungus
View Answer & Explanation
Question 287:
Callosobruchus maculates is a common pest of
  • A Maize
  • B Cowpea
  • C Rice
  • D Millet
View Answer & Explanation
Question 288:
Gummosis disease of citrus is caused by
  • A Aphids
  • B Fungi
  • C White flies
  • D Bacteria
View Answer & Explanation
Question 289:
Which of the weeds is dispersed by wind?
  • A Pig weed (Boerhavia diffusa)
  • B Goat weed (Ageratum conizoides)
  • C Hause thorns (Acanthospermum hispidum)
  • D Tridax (Tridax procumbeus)
View Answer & Explanation
Question 290:
The characteristic symptoms of mosaic disease of crops is usually observed on
  • A Roots
  • B Leaves
  • C Stems
  • D Fruits
View Answer & Explanation