Plant Pathology MCQ’s– Plant Pathology Multiple Choice Questions have very important place in all Agriculture Competitive Exams. which include National Eligibility Test, Pre Agriculture Test, Common Entrance Test etc.
NOTE: This page is updated every Monday (Evening). Number of questions in each update – 1-10.
Last Updated: 28/10/2019 pm IST.
Number of Questions Added: #38-39.
PLANT PATHOLOGY MCQ’S
PURCHASE PDF PLANT PATHOLOGY MCQ’S AND EXPLANATION #SERIES 01: PURCHASE 150 SET OF NEW QUESTIONS AND ANSWERS WITH EXPLANATION AND OTHER TOPICS (PLANT PATHOLOGY) @25 INR.
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Question – #1. The citrus canker lesions are characterized by the over development of?
(a). Parenchymatous tissues.
(b). Epidermal tissues.
(c) Ectodermal tissues.
(d). Endodermal tissues.
Question – #2. A form canker in citrus is caused by?
(a). Xanthomonas compestris pv. citri
(b). X. axonopodis pv. citri.
(c). X. axonopodis pv. aurantifolia.
(d). X. axonopodis pv. citrumelo.
Question – #3. The symptoms of black arm in cotton appears…?
(a). When bacteria attacks on stalk.
(b). When bacteria attacks on internodes.
(c). When bacteria attacks on stem.
(d). When bacteria attacks on poor twigs.
Question – #4. The Lethal Dilution Effect is found in most……?
(a). Xanthomonas and other bacteria.
(b). Pseudomonas and other bacteria.
(c). RSD and other bacteria.
(d). Non of the above.
Question – #5. Which is known as true canker?
(a). Mango canker.
(b). Citrus canker.
(c). Butternut canker (no cure).
(d). Tomato canker.
Question – #6. The casual organism of wilt of cotton wilt is?
(a). Fusarium oxysporium.
(b). Verticillium dahliae.
(c). Both a and b.
(d). None of the above.
Question – #7. Causal organism of wheat ear cockle?
(a). Fungus.
(b). Bacteria.
(c). Virus.
(d). Nematode.
Question – #8. Which type of parasite witchweed is ?
(a). Semi-root parasite.
(b). Semi-stem parasite.
(c). Root parasite.
(d). Stem parasite.
Question – #9. Management practice of RSD includes?
(a). Disease free nursery.
(b). Heat therapy of seed.
(c). Selection of seed from commercial crop.
(d). All of the above.
Question – #10. Grassy Shoot Disease was first noticed in India?
(a). Madhya Pradesh.
(b). Uttar Pradesh.
(c). Maharastra.
(b). Gujarat.
Question – #11. The famous Bengal famine is related with?
(a). Potato.
(b). Rice.
(c). Wheat.
(d). Maize.
Question – #12. Late blight of potato is caused by?
(a). Phytophthora erythroseptica.
(b). Phytophthora infastans.
(c). Pythium aphanidermatum.
(d). Non of the above.
Question – #13. Late blight of potato was first introduced in India in which place?
(a). Ooty.
(b). Aravali range.
(c). Nilgiri hills.
(d). Vindhya.
Question – #14. Tuber blight of potato is caused by?
(a). Phytophthora nicotianae.
(b). P. erythroseptica.
(c). P. drescheleri.
(d). P. infestans.
Question – #15. Which is true for late blight of potato under field condition?
(a). The effect is secondary.
(b). The effect is primary.
(c). The effect is tertiary.
(d). Both a and b.
Question – #16. The only effective method of control of citrus canker is?
(a). Streptomicin.
(b). Tetracycline.
(c). Bordeaux mixture.
(d). Burning of affected trees.
Question – #17. Which is a vector of citrus canker?
(a). Planoccus citri.
(b). Thrips nilgiriensis.
(c). Phyllocnistis citrella.
(d). Diphornea citri.
Question – #18. The angular leaf spot of cotton was first reported in which country?
(a). USA.
(b). China.
(c). India.
(d). Sri Lanka.
Question – #19. Whiptail of cauliflower is due to deficiency of?
(a). Molybdenum.
(b). Zinc.
(c). Iron.
(d). Boron.
Question – #20. Target spot develops in leaf in which disease?
(a). Tomato, early blight.
(b). Rice blight.
(c). Late blight potato.
(d). All of the above.
Question – #21. Choose the Pseudomonas bacteria which act as plant pathogen?
(a). P. aeruginosa.
(b). P. syringae.
(c). P. putida.
(d). P. fluorescent.
Question – #22. Pseudomonas putida is a bacteria which is known as?
(a). Plant pathogen.
(b). Soil bacterium.
(c). Plant growth prompting bacteria.
(d). Non of the above.
Question – #23. Which siderophore is produced by Pseudomonas fluorescnens?
(a). Pyocyanin.
(b). Thioquinolobactin.
(c). Both a and b.
(d). Non of the above.
Question – #24. The most common secretion of Pseudomonas spp. is?
(a). Pyoverdine.
(b). Pyocyanin.
(c). Other fluorescent.
(d). Thioquinolobactin.
Question – #25. Bacterial blotch of cultivated mushrooms is caused by?
(a). P. agarici.
(b). P. syringae.
(c). P. tolassii.
(d). Non of the above.
Question – #26. Rice blast is caused by?
(a). Bacteria.
(b). Fungus.
(c). Virus.
(d). Mycoplasma.
Question – #27. New biomaker technology is used to control which disease in rice.
(a). Bacterial leaf blight.
(b). Blast.
(c). Sheath blight.
(d). Rust.
Question – #28. Sorghum is a non-host plant for which species of nematode?
(a). Soybean cyst nematode.
(b). Reniform nematode.
(c). Both a and b.
(d). Non of the above.
Question – #29. Which group is resistant to potato cyst nematode.
(a). Kufri swarna and kufri thenmalai.
(b). Kufri swarna and kufri malar
(c). Kufri swarna and kufri giriraj.
(d). All of the above.
Question – #30. As a thumb of rule which part of plant is affected by the flag smut of wheat?
(a). Upper part of leaf.
(b). Stem.
(c). Root.
(d). Every shoot of plant.
Question – #31. The casual organism of leaf smut of rice is?
(a). Entyloma Oryzae.
(b). Tilletia barclayana.
(c). Xanthomonas oryzae.
(d). Tilletia oryzae.
Question – #32. Witches broom in different plants is caused by?
(a). MLO.
(b). Virus.
(c). Fungi.
(d). All of the above.
Question- #33. Occurrence of endemic pest is defined as….?
(a). Occurs most frequently.
(b). Occurs in few localities.
(c). Occurs in same area year after year.
(d). Occurs in an area in severe form.
Question- #34. Molya is a disease of….?
(a). Rice.
(b). Wheat.
(c). Sugarcane.
(d). Maize.
Question- #35. Zinc deficiency is a major problem in…..?
(a). Wheat.
(b). Rice.
(c). Sugarcane.
(d). Millets.
Question- #36. Foot rot disease in rice is due to?
(a). Gibberella fujikuroi.
(b). Rhizoctonia solani.
(c). Phytophthora infestans.
(d). Fusarium oxysporium.
Question- #37. Viravar and hot treatment of seed is done against?
(a). False smut.
(b). Loose smut.
(c). Flag smut.
(d). Ear cokle.
Question- #38. The “Black 47” is related to….?
(a). Great Bengal Famine.
(b). Irish Famine.
(c). Famine in Edessa.
(d). Famine throughout Europe 1016.
Question- #39. The “Black 47” is related with…..?
(a). Tomato.
(b). Wheat.
(c). Rice.
(d). Banana.
PURCHASE PDF PLANT PATHOLOGY MCQ’S AND EXPLANATION #SERIES 01: PURCHASE 150 SET OF NEW QUESTIONS AND ANSWERS WITH EXPLANATION AND OTHER TOPICS (PLANT PATHOLOGY) @25 INR.
Mail at hm347h@gmail.com
NOTE: This page is updated every Monday (Evening). Number of questions in each update – 1 to 10.
Last Updated: 28/10/2019 02:00 pm IST.
Number of Questions Added: #38-39.
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