Plant Diseases
Description: GATE | |
Number of Questions: 15 | |
Created by: Priya Bakshi | |
Tags: GATE Nature and Classification of Plant Diseases Plant Diseases Diseases |
Which one of the following fungal diseases of plantation crops is associated with Cercosporidium longipes?
Which of the following statement(s) is/are false regarding ‘African daisy plant’?
- Downy mildew disease is caused by Cercospora gerberae.
- Nectria canker disease is caused by Erysiphe cichoracearum.
- Sclerotium rolfsii causes ‘Southern blight’ disease.
The fungus(fungi) responsible for ‘bird’s eye rot’ in grapes is/are A. Mycosphaerella angulata B. Elsinoe ampelina C. Sphaceloma ampelinum
Which of the following statements is/are not true?
- Leaf streak disease of maize is caused by Stenocarpella macrospora
- Stem rot of potato is caused by Sclerotium rolfsii.
- Athelia arachnoidea causes crater rot in carot.
- Cercospora brachypus causes noble rot disease in grapes.
Match the almond diseases in List-A with causing fungal pathogens in List-B ||| |---|---| |List-A |List-B| |A. Armillaria root rot|1. Venturia carpophila| |B. Green fruit rot|2. Rhizomorpha subcorticalis| |C. Hull rot|3. Rhizopus sp| |D. Scab|4. Botrytis cinerea|
‘Wart’ disease of potato is caused by _________________________.
Which among the following statements is/are not true?
- The causing agent for areolate leaf spot in citrus is Nematospora coryli.
- Nectria canker disease is caused by Erysiphe cichoracearum.
- Glomerella cingulata causes bitter rot in peanut.
The fungus responsible for ‘loose smut’ of barley is/are: A. Ustilago tritici B. Ustilago segetum C. Pyrenophora wirreganensis
Which one of the following rust diseases is caused by the fungus Gymnosporangium clavipes?
Match the diseases of fruit crops in column-I with fungal pathogens in column-II. ||| |---|---| |Column- I |Column-II| |A. Leaf spot of cherries and palms|1. Cerecosoridium viticola| |B. Brown leaf spot of grapes|2. Taphrina deformans| |C. Citrus greasy leaf spot|3. Blueriella sp.| |D. Leaf curl of peach and apricot|4. Mycosphaerella musicosa| | |5. Mycosphaerella citri|
The causing agent for angular leaf scorch of grapes is _______________________.
Select the correct match Column-I and Column-II ||| |---|---| |Column-I |Column-II| |A. Angular leaf scorch of grapes|1. Leptosphaeria sacchari| |B. Ring spot of sugarcane|2. Phymatotrichopsis omnivore| |C. Collar canker of tea|3. Pseudopezicula tetraspora| |D. Cotton root rot of crucifer|4. Phomopsis theae|
Which of the following statements is/are not true about fungal diseases of coffee?
- Red blister disease of coffee is caused by Fusarium solani.
- Phoma costaricensis causes thread blight disease.
- Gibberella xylarioides causes tracheomycosis.
Match the diseases in List-A with causing fungal pathogens in List-B and select the correct answer using the codes given below ||| |---|---| |List-A |List-B| |A. Cottony snow mold of wheat|1. Sclerotium rolfsii| |B. White leaf spot of crucifer|2. Coprinus psychromorbidus| |C. Hull rot of almond|3. Rhizopus sp.| |D. Southern blight of cotton|4. Pseudocercosporella capsellae|
Which of the following fungicides are used to control fungal diseases in apple? A. Methoxychlor B. Malathion C. Fenarimol D. Thiram E. Triadimefon