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Citrus greening disease (Chinese: huánglóngbìng; lit. 'yellow dragon disease'; or HLB) is a disease of citrus caused by a vector-transmitted pathogen. The causative agents are motile bacteria, Candidatus Liberibacter spp. The disease is vectored and transmitted by the Asian citrus psyllid, Diaphorina citri, and the African citrus psyllid, Trioza erytreae, also known as the two-spotted citrus psyllid. Sweet orange is used as indicator plant.
____ is the only design in which principle of local control is not used.
Water loss by transpiration for single plant of following kinds of plant during growing season is less:
TRIPS (Trade-Related Aspects of Intellectual Property Rights) agreement is administered by the_______ .
Which one the following farming system receives average annual rainfall > 1150 mm?
In early withdrawal of monsoon what should be best moisture mitigation practice?
“Corky core” in apples and “cracked fruit” of peaches is due to the deficiency of
Mutation was first discovered by ___________
The process of judicious removal of parts like leaves, flowers, and fruits to obtain good and qualitative yield is called:
Which of the following is considered as noble cane of sugarcane?
_______ has contractual authority to sell a manufacturer's entire output.