Panama - GS questions based on daily current affairs

1)   Panama disease affects primarily

a. Humans
b. Animals
c. Plants
d. Microorganisms
Answer  Explanation 

ANSWER: Plants

Explanation:

  • The Panama disease is caused by a soil-borne fungus in banana crops.
  • Also called Fusarium Wilt of banana, Panama is caused by the soil-borne fungus Fusarium oxysporum f. sp. Cubense (Foc).
  • The fungus enters the plant through the roots and goes on to colonise the plant through the vascular system. It causes discoloration and wilting of leaves, and eventually kills the plant.
  • The recommended treatment is soil treatment with fungicides.
  • The symptoms are – Leaf Yellowing, wilted leaves, stem splitting
  • A new virulent strain of the disease known as Tropical Race 4 (TR4) is now threatening banana crops in Asia, Australia, Africa and the Middle East.