WhatsApp Group Join Now
Telegram Channel Join Now
Instagram Profile Follow Me

25 most important MCQ questions with answers and short explanation on “Disease of Tomato and their management”

  1. What is the causal agent of Early Blight in tomatoes?
    a) Alternaria solani
    b) Phytophthora infestans
    c) Ralstonia solanacearum
    d) Fusarium oxysporum
    Answer: a) Alternaria solani
    Explanation: Early blight is primarily caused by the fungus Alternaria solani, which leads to leaf spots and premature leaf drop.
  2. Which disease is characterized by wilting and brown discoloration of vascular tissues?
    a) Blossom end rot
    b) Bacterial wilt
    c) Late blight
    d) Powdery mildew
    Answer: b) Bacterial wilt
    Explanation: Bacterial wilt, caused by Ralstonia solanacearum, leads to rapid wilting and browning of vascular tissues.
  3. What deficiency causes Blossom End Rot in tomatoes?
    a) Magnesium
    b) Calcium
    c) Nitrogen
    d) Potassium
    Answer: b) Calcium
    Explanation: Blossom end rot is primarily due to calcium deficiency, affecting the fruit’s development.
  4. Which insect is a vector for Tomato Yellow Leaf Curl Virus (TYLCV)?
    a) Aphids
    b) Whiteflies
    c) Spider mites
    d) Thrips
    Answer: b) Whiteflies
    Explanation: Whiteflies are known vectors for the Tomato Yellow Leaf Curl Virus, which causes significant yield loss.
  5. What is the primary management strategy for Late Blight?
    a) Crop rotation
    b) Fungicide application
    c) Soil amendment
    d) Irrigation management
    Answer: b) Fungicide application
    Explanation: Late blight, caused by Phytophthora infestans, is managed effectively through timely fungicide applications.
  6. Which of the following diseases is caused by a nematode?
    a) Root-knot disease
    b) Late blight
    c) Fusarium wilt
    d) Septoria leaf spot
    Answer: a) Root-knot disease
    Explanation: Root-knot disease is caused by root-knot nematodes that form galls on tomato roots.
  7. What symptom indicates Tomato Mosaic Virus infection?
    a) Leaf curl and yellowing
    b) Wilting and browning stems
    c) Dark spots on leaves
    d) Fruit cracking
    Answer: a) Leaf curl and yellowing
    Explanation: TMV causes mottled leaves, yellowing, and curling, affecting plant vigor.
  8. Which cultural practice helps reduce the incidence of soil-borne diseases in tomatoes?
    a) Monocropping
    b) Crop rotation
    c) Overwatering
    d) High-density planting
    Answer: b) Crop rotation
    Explanation: Crop rotation with non-solanaceous crops helps break disease cycles in soil.
  9. What is the cause of Catface disorder in tomatoes?
    a) Nutrient deficiency
    b) Environmental stress
    c) Viral infection
    d) Fungal infection
    Answer: b) Environmental stress
    Explanation: Catface is caused by environmental stresses during fruit development, leading to malformed fruit.
  10. Which tomato variety is resistant to bacterial wilt?
    a) Roma
    b) Kewalo
    c) Big Beef
    d) Better Boy
    Answer: b) Kewalo
    Explanation: Kewalo has shown partial resistance to bacterial wilt.
  11. What management practice can prevent fruit cracking in tomatoes?
    a) Regular irrigation
    b) High nitrogen fertilization
    c) Low light exposure
    d) High density planting
    Answer: a) Regular irrigation
    Explanation: Consistent soil moisture can help prevent fruit cracking caused by fluctuations in water availability.
  12. Which pathogen causes Southern Blight in tomatoes?
    a) Sclerotium rolfsii
    b) Fusarium oxysporum
    c) Rhizoctonia solani
    d) Pythium spp.
    Answer: a) Sclerotium rolfsii
    Explanation: Southern Blight is caused by Sclerotium rolfsii, leading to wilting and decay at the base of the plant.
  13. Which physiological disorder results from excessive moisture fluctuation?
    a) Blossom end rot
    b) Fruit cracking
    c) Sunscald
    d) Puffiness
    Answer: b) Fruit cracking
    Explanation: Fluctuations in moisture levels can lead to radial and concentric cracking in tomato fruits.
  14. What is the best way to manage Powdery Mildew on tomatoes?
    a) Increase humidity
    b) Apply sulfur fungicides
    c) Use high nitrogen fertilizers
    d) Water frequently
    Answer: b) Apply sulfur fungicides
    Explanation: Sulfur fungicides are effective against Powdery Mildew, which thrives in dry conditions.
  15. Which tomato disease is characterized by dark lesions on leaves and stems?
    a) Late blight
    b) Septoria leaf spot
    c) Bacterial speck
    d) Early blight
    Answer: d) Early blight
    Explanation: Early blight causes dark lesions on leaves and stems due to Alternaria solani infection.
  16. How can you control Tomato Fruit Worm?
    a) Chemical pesticides only
    b) Handpicking larvae
    c) Crop rotation only
    d) Ignoring it
    Answer: b) Handpicking larvae
    Explanation: Handpicking larvae can help reduce their population before they cause significant damage.
  17. Which nutrient deficiency leads to yellowing between leaf veins (interveinal chlorosis)?
    a) Nitrogen
    b) Iron
    c) Potassium
    d) Magnesium
    Answer: b) Iron
    Explanation: Iron deficiency causes interveinal chlorosis while leaf veins remain green.
  18. What type of virus causes Tomato Spotted Wilt?
    a) RNA virus
    b) DNA virus
    c) Bacteriophage
    d ) Fungal virus
    Answer: a ) RNA virus
    Explanation: Tomato Spotted Wilt Virus (TSWV), an RNA virus, affects various crops including tomatoes.
  19. Which method is NOT effective for controlling fungal diseases in tomatoes?
    a ) Sanitation practices
    b ) Overhead irrigation
    c ) Resistant varieties
    d ) Crop rotation
    Answer: b ) Overhead irrigation
    Explanation: Overhead irrigation can promote fungal diseases by keeping foliage wet.
  20. What does the term “catfacing” refer to in tomato cultivation?
    a ) A type of pest damage
    b ) A physiological disorder
    c ) A viral infection
    d ) A nutritional deficiency
    Answer: b ) A physiological disorder
    Explanation: Catfacing refers to malformed fruit due to environmental stress during development.
  21. Which tomato disease can be managed through grafting onto resistant rootstocks?
    a ) Blossom end rot
    b ) Bacterial wilt
    c ) Late blight
    d ) Powdery mildew
    Answer: b ) Bacterial wilt
    Explanation: Grafting onto resistant rootstocks can provide effective management for bacterial wilt.
  22. What is the primary symptom of Fusarium Wilt in tomatoes?
    a ) Leaf curling
    b ) Yellowing of lower leaves
    c ) Brown streaks on stems
    d ) Wilting of entire plant
    Answer: d ) Wilting of entire plant
    Explanation: Fusarium wilt typically results in rapid wilting of the entire plant due to vascular blockage.
  23. Which practice helps reduce nematode populations in tomato fields?
    a ) Planting cover crops
    b ) Frequent tillage
    c ) Overwatering
    d ) High nitrogen fertilization
    Answer: a ) Planting cover crops
    Explanation: Certain cover crops can help suppress nematode populations when incorporated into the soil.
  24. What type of irrigation method helps prevent fungal diseases in tomatoes?
    a ) Drip irrigation
    b ) Flood irrigation
    c ) Sprinkler irrigation
    d ) Surface irrigation
    Answer: a ) Drip irrigation
    Explanation: Drip irrigation minimizes leaf wetness, reducing the risk of fungal infections.
  25. Which tomato cultivar is known for its resistance to multiple diseases including bacterial wilt and fusarium wilt?
    a ) Celebrity hybrid
    b ) Brandywine
    c ) Roma
    d ) San Marzano
    Answer: a ) Celebrity hybrid
    Explanation: Celebrity hybrid is noted for its resistance to several common tomato diseases.

By Wasim Ilyas Akram

दोस्तों, मैं एक एग्रीकल्चर ग्रेजुएट हूं और पिछले लगभग 5 सालों से मैं किसान समुदाय के लिए काम कर रहा हूं। मैंने Centre Of Excellence For Vegetables, Gharaunda में नर्सरी एक्सपर्ट के पद पे कार्य किया है और पौध उत्पादन में करीब 5 साल दिए हैं। इसके अलावा हमारा एक YouTube चैनल AAS TV के नाम से है, जिसपे हम लगातार videos की शक्ल में खेती से जुड़ी उन्नत जानकारी साझा करते हैं। आप भी हमारे साथ इस मुहिम में आज़ ही जुड़िए।

Leave a Reply

Your email address will not be published. Required fields are marked *

सरसों के तेल के ये 7 फायदे जानकर आप रह जायेंगे हैरान|  Who was Ustaad Zakir Hussain? पौधों के लिए एक अमृत की तरह है मल्टीप्लेक्स कंपनी का जनरल लिक्विड| क्या है ‘व्हाइट रिवोल्यूशन 2.0’ और कैसे ये महिलाओं को बनाएगा सशक्त? मसालों की लिस्ट में अगर नहीं है हल्दी, तो रह जाओगे काफी फायदों से महरूम| खाली पेट बादाम खाने के हैं बेशुमार फायदे, अभी डाइट में करें शामिल| सेहत का खज़ाना है ब्रसेल्स स्प्राउट्स (Brussels Sprouts), फायदे जानकर आप भी रह जायेंगे हैरान| “Women’s T20 World Cup 2024: Soaring to New Heights in Cricket!” इंडिया में खाए जाने वाले 5 मुख्य ट्रेडिशनल डिशेज, आपकी पसंदीदा कौनसा है? कौनसे हैं दुनिया के 5 सबसे ज्यादा जहरीले सांप? जानकर रह जायेंगे हैरान!