ENTO 2993 FINAL EXAM REPORTED
QUESTIONS WITH CORRECT
ANSWERS
Hyperparasitism - Answer- A condition in which a secondary parasite develops within a
previously existing parasite
Hyperparasitoid - Answer- A condition in which a secondary parasite develops within a
previously existing parasite
Why is hyperparasitism bad for biological control? - Answer- They kill the parasitoids
that kill the pests.
Name 1 advantage and 1 disadvantage of using parasitoids for biological control? -
Answer- Work well with small population of pests, but not good in high density
Name 1 advantage and 1 disadvantage of using predators for biological control? -
Answer- Work well with large populations, but not low density.
Which type of natural enemy do people prefer to use for biological control? Predators or
parasitoids? Why? - Answer- It depends on the density of the best. If there is a high
density then predators are preferred, if there is a low density then parasitoids are
preferred.
Ways to Avoid Host Immune Response? - Answer- -Avoidance
-Evasion
-Destruction
-Suppression
-Subversion
-Combinations
Avoidance - Answer- egg parasitism or temporary occupancy of an insect organ
Evasion - Answer- parasitoid is coated with something the host detects as "familiar" -
"stealth"
Destruction - Answer- the parasitoid does something to weaken the host's immune
system. For example, lay multiple eggs on a single host.
Suppression - Answer- parasitoids may be associated with viruses that interfere with the
immune response - "attack"
QUESTIONS WITH CORRECT
ANSWERS
Hyperparasitism - Answer- A condition in which a secondary parasite develops within a
previously existing parasite
Hyperparasitoid - Answer- A condition in which a secondary parasite develops within a
previously existing parasite
Why is hyperparasitism bad for biological control? - Answer- They kill the parasitoids
that kill the pests.
Name 1 advantage and 1 disadvantage of using parasitoids for biological control? -
Answer- Work well with small population of pests, but not good in high density
Name 1 advantage and 1 disadvantage of using predators for biological control? -
Answer- Work well with large populations, but not low density.
Which type of natural enemy do people prefer to use for biological control? Predators or
parasitoids? Why? - Answer- It depends on the density of the best. If there is a high
density then predators are preferred, if there is a low density then parasitoids are
preferred.
Ways to Avoid Host Immune Response? - Answer- -Avoidance
-Evasion
-Destruction
-Suppression
-Subversion
-Combinations
Avoidance - Answer- egg parasitism or temporary occupancy of an insect organ
Evasion - Answer- parasitoid is coated with something the host detects as "familiar" -
"stealth"
Destruction - Answer- the parasitoid does something to weaken the host's immune
system. For example, lay multiple eggs on a single host.
Suppression - Answer- parasitoids may be associated with viruses that interfere with the
immune response - "attack"
