General agriculture pointer - 53

1. Solid crystal fumigant – (naphthalene)

2. Fumigant in dust form – (calcium cyanide/sodium cyanide)

3. Botanical insecticide – (tobacco decoction/neem-oil garlic emulsion/neem kernel suspension/kerosene soap emulsion)

4. First successful bio-control was – (against cottony cushion scale using vedalia beetle in usa)

5. Parasite which kills its host – (parasitoid)

6. Eg. for a parasitoid – (trichogramma chilonis)

7. Reduvid bug is a predator of – (rhinoceros beetle)

8. Amblyscius mite is used for the control of – (coconut eriophyid mite)

9. Egg parasite – (trichogramma sp / telenomus sp / tetrastychus sp)

10. Larval parasite – (cotesia sp / xanthopimpla sp / charops sp)

11. Effective in the bio-control of rhinoceros beetle – (baculovirus)

12. Pheromone used against red palm weevil of coconut – (ferrolure)

13. Pheromone used against rhinoceros beetle of coconut – (sb pheromone)

14. Black headed caterpillar of coconut is controlled by using larval parasitoid – (bracon brevicornis/goniozus nephantidis/elasmus nephantidis)

15. Micro-organisms that cause disease in insects are known as – (entomopathogens)

16. Eg. for entomopathogen – (bacillus thuringiensis)

17. Fungus controlling rhinoceros grub – (green muscardine fungus)

18. Cow pea aphids can be biologically controlled using – (fusarium pallidoroseum)

19. Etl means – (economic threshold level)

20. Eil means – (economic injury level)

21. Persistence of insecticidal residues in the food chain – (bio magnification)

22. Maximum quantity of pesticide residue permitted in foodstuff – (mrl – maximum residual limit)

23. Time gap between pesticide application and harvest – (waiting period)

24. Insecticide act was introduced in – (1968)

25. Insecticide rules came into force in – (1971)

26. Larval parasite of rice stem borer – (xanthopimpla sp)

27. Study of plant diseases – (plant pathology)

28. Inability of a plant to resist pathogen – (susceptibility)

29. Organism capable of causing disease – (pathogen)

30. Mango black tip is caused by – (boron deficiency)

31. Fungal pathogen causing damping off – (pythium sp)

32. Fungal pathogen causing downy mildew – (peronospora sp)

33. Fungal pathogen causing white rust – (albugo sp)

34. Fungal pathogen causing powdery mildew – (erysiphe sp)

35. Fungal pathogen causing rust disease – (puccinia sp)

36. Fungal pathogen causing anthracnose – (colletotrichum sp)

37. Fungal pathogen causing blast in rice – (pyricularia sp)

38. Fungal pathogen causing brown spot in rice – (helminthosporium sp)

39. Bacterial leaf blight in rice is caused by – (xanthomonas spp)

40. Gall-forming bacteria – (agrobacterium sp)

41. Virus disease – (mosaics/mottles/katte/kokkan/buncy top)

42. Disease caused by phytoplasma – (little leaf of brinjal/rice yellow dwarf/root wilt of coconut)

43. Phanerogamic parasite – (loranthus/cuscutta/striga/orobanche)

44. Orobanchе otherwise known as – (brown rape)

45. Striga otherwise known as – (witch weed)

46. Cuscuta otherwise known as – (dodder)

47. Red rust of tea is caused by – (algae)

48. Water-borne disease – (bacterial leaf blight & sheath blight of paddy)

49. Disease symptom of dying backward from the tip – (dieback)

50. Pathogen identification method – (koch’s postulates)

51. Study of interrelationship between pathogen, host & environment – (plant disease epidemiology)

52. Diseases occurring at irregular intervals – (sporadic diseases)

53. Disease constantly present in a locality – (endemic diseases)

54. Methods to prevent disease occurrence – (prophylactic method)

55. Idm means – (integrated disease management)

56. Eg. for systemic fungicide – (carbendazim/tridemorph)

57. Antifungal antibiotic – (aureofunginsol/griseofulvin/validamycin)

58. Antibacterial antibiotic – (streptocycline/agrimycin/plantomycin/paushamycin)

59. Inorganic fungicide – (bordeaux mixture/cheshunt compound)

60. Fungicidal properties of bordeaux mixture identified by – (millardet)

61. Copper sulphate required for 1 litre bordeaux mixture – (10 gram)

62. Bio-control agent effective against diseases of spices – (trihoderma spp/flourescent pseudomonas)

63. Method of hydrothermal disinfection of soil – (soil solarization)

64. Polythene sheet thickness for soil solarization – (100–150 gauge)

65. Burgundy mixture is a – (copper fungicide)

66. White tip disease in rice is caused by – (white tip nematode)

67. Anticoagulant rodenticide – (warfarin)

68. Red spider mite is a pest of – (tapioca)

69. Acute poison – (zinc phosphide)

70. Chronic poison – (warfarin)

71. Effective method for controlling stored grain pests – (fumigation)

72. Fumigation usually carried out using – (aluminium phosphide)

73. Pest of stored products – (rice weevil/khapra beetle/red flour beetle/lesser grain borer/pulse beetle/cigar beetle/drug store beetle/potato tuber moth/angumois grain moth)

74. In "ld50", ld stands for – (lethal dose)

75. In "lc50", lc stands for – (lethal concentration)

76. Annual weed plant – (leucas, echinochloa)

77. Wetland weed – (marselia/eichhornia/salvinia/nymphaea/nelumbo/wild rice)

78. Terrestrial weed – (eupatorium/phyllanthus/sida/tridax/emilia)

79. Perennial weed plant – (cyperus)

80. African payal biologically controlled using – (cyrtobagous spp)

81. First herbicide manufactured and used – (2,4-d)

82. Indian states with maximum herbicide usage – (punjab & haryana)

83. In kerala, maximum herbicide usage – (plantation sector)

84. Fungal-origin bio-herbicides are called – (myco-herbicides)

85. Mycoherbicide – (devine/collego/abg 5003)

86. Bio-control agents of water hyacinth – (neochetina weevils/orthogalumna mite)

87. Bio-control agent used against eupatorium – (mexican gall fly)

88. Contact herbicide – (paraquat/propanil)

89. Systemic herbicide – (dalapon/2,4-d)

90. Selective herbicide – (2,4-d/dalapon/butachlor)

91. Non-selective herbicide – (glyphosate/paraquat)

92. Pre-emergent herbicide – (atrazine/diuron/thiobencarb)

93. Post-emergent herbicide – (glyphosate/paraquat)

94. 2,4-d controls only – (broad leaved weeds)

95. Dalapon controls only – (grassy weeds)

96. Cyperus belongs to – (sedges)

97. Herbicides sprayed using type of nozzles – (floodjet/floodfan)

98. Most expensive & essential component of a sprayer – (pump)

99. Apertures to break liquid into fine droplets – (nozzles)

100. High-volume sprayer – (knapsack/rocker/hand sprayer)

101. Low-volume sprayer – (power sprayer)