#60.
An insect that feeds on a number of unrelated species of plants.
A
Polyphagous insects
B
Phytophagous insects
C
Monophagous insects
D
Entompophagous insects
Answer: Polyphagous insects
#61.
A biological control agent that consumes many preys in its lifetime.
A
Parasite
B
Vector
C
Predator
D
Symbionts
Answer: Predator
#62.
The collective term for parasitic and predatory insects
A
Phytophagous insects
B
Entomophagous insects
C
Polyphagous insects
D
Phagocytic insects
Answer: Entomophagous insects
#63.
A biological control organism that usually lives inside the body of its host and consumes only one host to complete its life cycle
A
Parasite
B
Predator
C
Vector
D
Pathogen
Answer: Parasite
#64.
The symptom of stemborer damage during the reproductive stage of the rice plant characterized by the appearance of whole panicles of unfilled grains
A
Deadheart
B
Whitehead
C
Wilting
D
Mosaic
Answer: Whitehead
#65.
The symptom of yellowing and wilting of the youngest leaf as a result of feeding by the stemborer larvae during the vegetative stage of rice plant.
A
Deadheart
B
Whitehead
C
Leafrolling
D
Rotting
Answer: Deadheart
#66.
The growth stage/s of the rice plant that is/are most preferred by the rice bug
A
Negative stage
B
Soft dough stage
C
Milk stage
D
Both B & C
Answer: Both B & C
#67.
The most destructive avian pest that attacks rice and other small grains
A
Philippine weaver
B
Philippine eagle
C
Philippine oriole
D
Philippine bird
Answer: Philippine weaver
#68.
A vertebrate pest which is a perennial problem in crop production and which usually demands a unified, coordinated and sustained community action for its effective control
A
Birds
B
Snakes
C
Rodents
D
Crocodile
Answer: Rodents
#69.
A serious pest of com that attacks all parts of the plant except the roots
A
Cutworm
B
Cornstalk borer
C
Corn-semi-looper
D
Corn-borer
Answer: Cutworm
#70.
A homopteran insect pest that transmits the tungro virus disease
A
Brown planthopper
B
Green leafhopper
C
Whitebacked planthopper
D
Zigzag leafhopper
Answer: Green leafhopper
#71.
Substances, such as sex pheromones, that lure insects and can be used as a means of control
A
Anti-feedants
B
Repellants
C
Attractants
D
Chemo-sterilants
Answer: Attractants
#72.
A group of rodenticides that are slow-acting and are usually referred to as anti-coagulant rodenticides
A
Sterilant
B
Chronic rodenticides
C
Baits
D
Acute rodenticides
Answer: Chronic rodenticides
#73.
The ability of populations of pests to survive doses of an insecticide which are normally lethal
A
Insecticide resistance
B
Overdose
C
Insecticide threshold level
D
Insecticide mismanagement
Answer: Insecticide resistance
#74.
Synchronous planting is an example of
A
Mechanical control
B
Biological control
C
Chemical control
D
Cultural control
Answer: Cultural control
#75.
The physical removal of insect pests from the infested plants is a
A
Mechanical control
B
Biological control
C
Chemical control
D
Cultural control
Answer: Mechanical control
#76.
Th e ability of a plant variety to withstand infestation and to support insect populations that would otherwise severely damage susceptible plants
A
Antibiosis
B
Host evasion
C
Tolerance
D
Non-preference
Answer: Tolerance
#77.
Includes all adverse effects exerted by the plant on the insect’s survival, development and reproduction
A
Antibiosis
B
Host evasion
C
Tolerance
D
Non-preference
Answer: Antibiosis
#78.
The toxic component of a pesticide
A
Diluent
B
Inert ingredient
C
Active ingredient
D
Surfactant
Answer: Active ingredient
#79.
An insecticide that is absorbed by and translocated in the plant and the insects acquire the poison through feeding