Fungal Causative Diseases of Plants (GATE - XL)
Test your knowledge of fungal plant diseases and their causative agents for GATE XL examination preparation
Questions
Northern corn leaf blight is caused by
- Puccinia sorghi
- Bipolaris maydis
- Exserohilum turcicum
- Puccinia polysora
- Cercospora zeae-maydis
White mold of pepper is caused by
- Botrytis cinerea
- Sclerotinia sclerotiorum
- Peronospora tabacina
- Stemphylium solani
- Macrophomina phaseolina
Identify the mismatched pair of disease and its causative agent.
- Black root rot of cotton : Thielaviopsis basicola
- Black rot of crucifers : Xanthomonas campestris
- Gray mold of hemp : Agrobacterium tumefaciens
- Downy mildew of mustard : Peronospora parasitica
- Bottom rot of lettuce : Rhizoctonia solani
Which of the following diseases of sugarcane is not caused by a fungus?
- Gumming disease
- Black stripe
- Pineapple disease
- Rind disease
- Black rot
Which of the following pairs of 'crop disease : causative agent' is not correctly matched?
- Coffee leaf rust : Hemileia vastatrix
- Ergot of rye : Claviceps purpurea
- Early blight of potato : Phytophthora infestans
- Crown rust of oats : Puccinia coronata
- Halo blight of beans : Pseudomonas syringae
Which of the following are fungal plant diseases?
P. Black rot of crucifers
Q. Downy mildew of rice
R. Fire blight of pome fruits
S. Red rot of sugarcane
- P and Q
- P and R
- Q and R
- Q and S
- R and S
Powdery mildew of cucurbits is caused by
P. Erysiphe cichoracearum
Q. Blumeria graminis
R. Sphaerotheca fuliginea
S. Erysiphe necator
- P and Q
- P and R
- P and S
- Q and R
- R and S
Asian soyabean rust is caused by
P. Phakopsora pachyrhizi
Q. Phakopsora meibomiae
R. Puccinia purpurea
S. Puccinia graminis
- P and Q
- P and R
- Q and R
- Q and S
- R and S
Match column – I (Disease) with column – II (Causative agent) and select the correct option.
| Column – I | Column – II |
| A. Loose smut of barley | 1. Tilleta laevis |
| B. Covered smut of barley | 2. Ustilago tritici |
| C. Loose smut of wheat | 3. Ustilago hordei |
| D. Covered smut of wheat | 4. Ustilago nuda |
- A - 4, B - 3, C - 2, D - 1
- A - 2, B - 1, C - 4, D - 3
- A - 2, B - 1, C - 3, D - 4
- A - 3, B - 2, C - 4, D - 1
- A - 1, B - 2, C - 3, D - 4
Match column – I (Wheat leaf rust) with column – II (Causative agent) and select the correct option.
| Column – I | Column – II |
| A. Black rust | 1. Puccinia triticina |
| B. Brown rust | 2. Puccinia recondita |
| C. Yellow rust | 3. Puccinia striiformis |
- A - 1, B - 2, C - 3
- A - 1, B - 3, C - 2
- A - 2, B - 1, C - 3
- A - 2, B - 3, C - 1
- A - 3, B - 2, C - 1