GEORGIA CATEGORY 41 PEST
CONTROL: MOSQUITO SURVEILLANCE
EXAM QUESTIONS AND ANSWERS
Aedes vexans - Answer-*Common floodwater/temporary pool species
*Migrate 5-10miles from larval habitat
West Nile Virus - Answer-*Transmitted by the Culex quinquefasciatus mosquito to
humans
*20% of those infected develop....
*Crows and blue jays most vulnerable in N. American strain
Eastern Equine Encephalitis - Answer-*Most pathogenic encephalitis causing virus
* >50% mortality in humans, 90-95% mortality in horses
*Primarily transmitted by the Culiseta melanur mosquito in swamp environments
La Crosse Encephalitis - Answer-*Primarily a disease of children under 15
*Majority of cases occur in August
*Mosquito remains infected for life
*Ochlerotatus genus primarily transmits to small rodents
St. Louis Encephalitis - Answer-*Transmitted by the Culex quinquefasciatus &
nigripalpus
*Deadliest among those age 50+
*Peaks in late August
Malaria - Answer-*Transmitted by Anopheles quadrimaculatus & crucians
*Use of DDT has dramatically decreased cases
*Four species of the parasite responsible for causing it
How many different species does the Plasmodium parasite have? - Answer-4
Dengue - Answer-*4 varying strands
*Transmitted by Aedes aegypti in the U.S.
*Require 10 day incubation period before the mosquito can transmit to humans
*Mosquito is infected for its life
Known as Breakbone Fever - Answer-dengue
Yellow Fever - Answer-*Transmitted by Aedes aegypti (Oc. japonicus & Ae. albopictus)
*Currently found in Africa and S. America
Zika Virus - Answer-*Transmitted by Aedes albopictus & aegypti
, *Can be sexually transmitted
Dog Heartworm - Answer-*Transmitted by the Culex quinquefasciatus
*Caused by parasite, filarial nematode
How much is spent annually in dog heartworm prevention? - Answer-$1.2 Billion
What percentage of dogs infected with heartworms are over 2.5 years? - Answer-80%
Do female heartworms lay eggs? - Answer-No
What diseases can Culex quinquefasciatus transmit? - Answer-*West Nile Virus
*St. Louis Encephalitis
*Dog Heartworm
What disease can Aedes aegypti transmit? - Answer-*Yellow Fever
*Dengue
*Zika Virus
What disease can Culiseta melanura transmit? - Answer-*Eastern Equine Encephalitis
What disease can Ochlerotatus triseriatus transmit? - Answer-*La Cross Encephalitis
What disease can Anopheles quadrimaculatus transmit? - Answer-Malaria
3 Characteristics of the Anophelinae mosquito - Answer-*Larvae does not have a
siphon
*Larvae lie parallel to waters surface
*Permanent Pool species
3 Characteristics of the Culicinae mosquito - Answer-*Siphon always present in larvae
*No palmate hairs on larvae
*Lay at 45-degree angle to waters surface
Can eggs generally be used to classify mosquito species? - Answer-No
What are the body regions of the mosquito larvae? - Answer-*Head
*Thorax
*Abdomen
What is used to identify mosquito larvae? - Answer-Structure and number of hairs
What do mosquito larvae consume? - Answer-Anything between 1-5 microns
When is larvicide ineffective in larvae killing? - Answer-4th instar
CONTROL: MOSQUITO SURVEILLANCE
EXAM QUESTIONS AND ANSWERS
Aedes vexans - Answer-*Common floodwater/temporary pool species
*Migrate 5-10miles from larval habitat
West Nile Virus - Answer-*Transmitted by the Culex quinquefasciatus mosquito to
humans
*20% of those infected develop....
*Crows and blue jays most vulnerable in N. American strain
Eastern Equine Encephalitis - Answer-*Most pathogenic encephalitis causing virus
* >50% mortality in humans, 90-95% mortality in horses
*Primarily transmitted by the Culiseta melanur mosquito in swamp environments
La Crosse Encephalitis - Answer-*Primarily a disease of children under 15
*Majority of cases occur in August
*Mosquito remains infected for life
*Ochlerotatus genus primarily transmits to small rodents
St. Louis Encephalitis - Answer-*Transmitted by the Culex quinquefasciatus &
nigripalpus
*Deadliest among those age 50+
*Peaks in late August
Malaria - Answer-*Transmitted by Anopheles quadrimaculatus & crucians
*Use of DDT has dramatically decreased cases
*Four species of the parasite responsible for causing it
How many different species does the Plasmodium parasite have? - Answer-4
Dengue - Answer-*4 varying strands
*Transmitted by Aedes aegypti in the U.S.
*Require 10 day incubation period before the mosquito can transmit to humans
*Mosquito is infected for its life
Known as Breakbone Fever - Answer-dengue
Yellow Fever - Answer-*Transmitted by Aedes aegypti (Oc. japonicus & Ae. albopictus)
*Currently found in Africa and S. America
Zika Virus - Answer-*Transmitted by Aedes albopictus & aegypti
, *Can be sexually transmitted
Dog Heartworm - Answer-*Transmitted by the Culex quinquefasciatus
*Caused by parasite, filarial nematode
How much is spent annually in dog heartworm prevention? - Answer-$1.2 Billion
What percentage of dogs infected with heartworms are over 2.5 years? - Answer-80%
Do female heartworms lay eggs? - Answer-No
What diseases can Culex quinquefasciatus transmit? - Answer-*West Nile Virus
*St. Louis Encephalitis
*Dog Heartworm
What disease can Aedes aegypti transmit? - Answer-*Yellow Fever
*Dengue
*Zika Virus
What disease can Culiseta melanura transmit? - Answer-*Eastern Equine Encephalitis
What disease can Ochlerotatus triseriatus transmit? - Answer-*La Cross Encephalitis
What disease can Anopheles quadrimaculatus transmit? - Answer-Malaria
3 Characteristics of the Anophelinae mosquito - Answer-*Larvae does not have a
siphon
*Larvae lie parallel to waters surface
*Permanent Pool species
3 Characteristics of the Culicinae mosquito - Answer-*Siphon always present in larvae
*No palmate hairs on larvae
*Lay at 45-degree angle to waters surface
Can eggs generally be used to classify mosquito species? - Answer-No
What are the body regions of the mosquito larvae? - Answer-*Head
*Thorax
*Abdomen
What is used to identify mosquito larvae? - Answer-Structure and number of hairs
What do mosquito larvae consume? - Answer-Anything between 1-5 microns
When is larvicide ineffective in larvae killing? - Answer-4th instar