Question
The disorder which occurs due to high temperature and
high relative humidity and it is the major problem in North India in which juice vessels dries up. The disorder of citrus isSolution
Granulation - It occurs due to high temperature and high relative humidity. Major problem in North India in which juice vessels dries up. Greening disease of citrus - It is caused by Candidatus liberibacter and transmitted by Citrus psylla (Diaphorina citri). Exocortis - It is caused by viroid. Also called scalybutt.
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A boat goes 40km upstream in 8 hours and 36km downstream in 6 hours. The speed of the boat in still water.
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