Agriculture Exams (Agri Croppro) – Page 3

#40. This elbow-like type of antennae found among ants
A Geniculate
B Clavate
C Lamellate
D Plumose
Answer: Geniculate
#41. This type of antennae is found among mosquitoes.
A Geniculate
B Clavate
C Lamellate
D Plumose
Answer: Plumose
#42. Preying manties use this type of forelegs to catch thin prey
A Grasping
B Clinging
C Walking
D Digging
Answer: Grasping
#43. Headlice use this type of legs to anchor themselves on the host.
A Grasping
B Clinging
C Walking
D Digging
Answer: Clinging
#44. In what type of insect development is the young stage known as a naiad?
A Ametabolous
B Hemimetabolous
C Paurometabolous
D Holometabolous
Answer: Holometabolous
#45. What type of insect development has larval and pupal stage?
A Hemimetabolous
B Ametabolous
C Holometabolous
D Paurometabolous
Answer: Hemimetabolous
#46. The pest population density where the cost of control is much higher than the expected cost of harvest of the projected crop.
A Economic injury level
B Economic threshold level
C Equilibrium level
D Damage level
Answer: Economic injury level
#47. A modern approach to minimize damage by pests with the ultimate goal of population management rather than eradication
A Integrated pesticides management
B Integrated pest management
C Pest control strategies
D Pesticides management
Answer: Integrated pest management
#48. A control method whereby synthetic toxic substances or bioactive plant products are used to combat pest population
A Use of resistant varieties
B Cultural control
C Chemical control
D Biological control
Answer: Chemical control
#49. An unwanted organism which competes with man for food and shelter or threatens their health, comfort or welfare
A Pest
B Insect
C Weed
D Pathogen
Answer: Pest
#50. A serious pest species that occurs perennially & regularly limits crop productivity
A Occasional pest
B Key pest
C Potential pest
D Destructive pest
Answer: Key pest
#51. A kind of pest that has no significant damage under prevailing agro-ecosystem but might bring about damage with a change in crop and cultural practices
A Occasional pest
B Key pest
C Potential pest
D Chronic pest
Answer: Potential pest
#52. The relative amount of heritable quantities in plants that influences the ultimate degree of damage by the pest.
A Host plant resistance
B Insecticide resistance
C Tolerance
D Antibiosis
Answer: Host plant resistance
#53. The man-directed control of insect pests by employing the use of natural enemies
A Mechanical control
B Cultural control
C Biological control
D Autocidal control
Answer: Biological control
#54. A control method that utilizes suitable agronomic practices to reduce pest population
A Mechanical control
B Cultural control
C Biological control
D Genetic control
Answer: Cultural control
#55. The term given for crop destruction, injury or loss of value caused by the feeding activity of different pests.
A Characteristic damage
B Pest infestation
C Threshold
D Damage indicator
Answer: Pest infestation
#56. A kind of damage caused by the feeding of an insect through the removal of plant sap or plant parts in contrast with the damage caused by disease-transmitting insects.
A Indirect damage
B Direct damage
C Damage indicator
D Action threshold
Answer: Indirect damage
#57. The pest density at which artificial control measures should be applied to prevent pest population increase or pest outbreak
A Economic injury level
B Equilibrium level
C Economic threshold level
D Satiation level
Answer: Economic threshold level
#58. An insect which carries and transmits a disease-causing organism to a plant.
A Predator
B Parasite
C Vector
D Symbionts
Answer: Vector
#59. A toxic substance which is readily available and kills pests instantly
A Insecticide
B Pesticides
C Rodenticide
D Weedicide
Answer: Pesticides