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27 Terms
What is the causal organism of blister blight of tea?
A. Exobasidium vexans
Which toxin is produced by ergot fungus?
A. Ergotin or Ergotoxin
What is heteroecious rust?
A. Rust fungus requiring more than one host to complete its life cycle.
Which vector transmits the pigeon pea sterility mosaic virus?
A. Eriophyid mite, Aceria cajani
What is the causal organism of blister blight of tea?
A. Exobasidium vexans
Which toxin is produced by ergot fungus?
A. Ergotin or Ergotoxin
What is heteroecious rust?
A. Rust fungus requiring more than one host to complete its life cycle.
Which vector transmits the pigeon pea sterility mosaic virus?
A. Eriophyid mite, Aceria cajani
What causes khaira disease in rice?
A. Zinc deficiency
Weekly spraying of 1% groundnut oil reduces which disease in papaya?
A. Mosaic
Name one fungal and one bacterial bioagent used for soil-borne disease control.
Fungal: Trichoderma spp., Aspergillus niger. Bacterial: Pseudomonas fluorescens, Bacillus subtilis
In crucifers, which disease shows 'V-shaped' yellowish spots on veins and veinlets?
Black rot
Papaya ring spot virus is transmitted by Myzus persicae. True or False?
True
Anthracnose of black gram is caused by Glomerella lindemuthianum. True or False?
True
‘Kresek’ phase in rice occurs due to blast disease. True or False?
False
Bunchy top of banana is transmitted by leafhoppers. True or False?
False
Moko wilt of banana is caused by
True
What is the causal organism of blister blight of tea?
A. Exobasidium vexans
Which toxin is produced by ergot fungus?
A. Ergotin or Ergotoxin
What is heteroecious rust?
A. Rust fungus requiring more than one host to complete its life cycle.
Which vector transmits the pigeon pea sterility mosaic virus?
A. Eriophyid mite, Aceria cajani
What causes khaira disease in rice?
A. Zinc deficiency
Weekly spraying of 1% groundnut oil reduces which disease in papaya?
A. Mosaic
Name one fungal and one bacterial bioagent used for soil-borne disease control.
Fungal: Trichoderma spp., Aspergillus niger. Bacterial: Pseudomonas fluorescens, Bacillus subtilis
In crucifers, which disease shows 'V-shaped' yellowish spots on veins and veinlets?
Black rot
Papaya ring spot virus
True
Note 
Flashcards (42)