13. Red = Rift valley Fever
Yellow = Yellow fever
Chicken = Chikungunya
Causes
AIDS = Aedes
&
Dengue = Dengue
14. Anopheles Culex Aedes
Diseases
Transmitted
Malaria Filariasis/
Japanese
Encephalitis/
West nile fever
Dengue/
Chikungunya/
Yellow fever
Breeding habitat Clean water Dirty water Artificial stored
water
Eggs Laid singly, Boat
shaped
Laid in clusters Laid singly, Cigar
shape
Adults Inclined at angle
to surface
Horizontal to
surface
Alternate black
and white strips
on body
Flight range 3-5km 11km 100metres
Other name Sophisticated
mosquito
Nuisance mosuito Tiger Mosquito
15. Environmental
control
Chemical Biological Genetic
Best approach 1) Not effective if
used alone
2) Resistance to
chemicals
have been
seen
Through use of
small fishes
e.g.;
1) Filling &
drainage of
freshwater
collection =
Anopheles
2) Do not store
artificial
collection of
water= Aedes
3) Abolition of
dirty water=
Culex
e.g:
1) Mineral oils
2) Paris green
3) Synthetic
insecticide like
Abate,malathio
n
e.g; Gambusia
17. -No. of hole per square Inch = 150
- Size of each hole diameter = <0.0475inch / 0.12cm
- Insecticide treated Bed nets contains : Synthetic Pyrethro
18.
19.
20.
21. -It is a Contact Poison/Nerve poison
- Takes several hours to kill
- Residual action : 18months Very
Impo
rtant
25. Q.Following are larval control measures exce
A) DDT
B) Paris green
C) Gambusia
D) Eradication of breeding places
26. Ans. DDT
Anti – larval measures are broadly grouped into:
1. Larvicides:
a. Chemicals – larvicidal oils, paris green, temephos
b. Biolarvicides – fishes like gambusia, lebister etc
2. Source reduction: drainage or filling, deepening or flushing, management
changing the salt content of water & intermittent irrigation
3. Integrated control: bioenvironmental as well as personal protective measu
DDT is not used as a larvicide. It is an anti-adult measure of vector control.
27. Environmental
control
Chemical Biological Genetic
Best approach 1) Not effective if
used alone
2) Resistance to
chemicals
have been
seen
Through use of
small fishes
e.g.;
1) Filling &
drainage of
freshwater
collection =
Anopheles
2) Do not store
artificial
collection of
water= Aedes
3) Abolition of
dirty water=
Culex
e.g:
1) Mineral oils
2) Paris green
3) Synthetic
insecticide like
Abate,malathio
n
e.g; Gambusia
28. The following statement about DDT is fa
A)Pyrethrum has synergistic action
B) It is a contact poison
C) Immediately kills the prey
D) Residual effect lasts for 18 months
29. Ans. C Immediately kills the prey
Ref: Park textbook of S.P.M
- DDT is primarily a contact poison, acting on the
nervous system of insects. It does not cause immediate
death but takes several hours to kill.
The residual action may last as long as 18 months
depending upon the treated surface. It has no repellant
action.
Most space sprays contain pyrethrum & DDT or other
synthetic insecticides which are added for synergistic
action.
Some imp facts about DDT: the technical DDT contains
70-80% of para-para isomer which is the most active
fraction of DDT.
30. Q. Which insect among the following is not resi
to DDT?
A) Musca domestica
B) Phlebotomus
C) culex
D)Anopheles stephensi
31. Ans. B) Phlebotomus
Resistance to DDT has not been demonstrated by sand
Phlebotomous.
All other agents mentioned in the question are known to
varying degrees of resistance to DDT.
32. Q. Which of the following insecticide is of p
origin: (DNB June 09)
A) Paris green
B) Propoxur
C) malathion
D) Pyrethrum
33. Ans. D Pyrethrum Ref: Park textbook of S.P.M
Pyrethrum is extracted from the flowers of Chrysanthemum
It is an excellent space spray.
34. Paris green is useful for killing: (DNB De
A) Anopheline larvae only
B) Culicine larvae only
C) Adult mosquitoes
D) None
35. Ans. A Anopheline larvae only Ref: Park textbook of S.P
Paris Green kills mainly the anopheles larvae because An
on surface and paris green floats on surface of water and
Sinks.
Bottom feeding larvae are also killed when Paris green is
special granular formation.
36. Q. Malathion spray is effective for:
A) One month
B) Two months
C) Three months
D) Four months
37. Ans. C )Three months Ref: Park textbook of S.P.M
Malathion is used in the doses of 100-200 mg square fo
every three months.
It has least toxicity of all organophosphorus compounds
38. Q. Dose of malathion used for residual insecticidal acti
A. 100-200 mg/sq. foot
B. 25-50 mg/sq. foot
C. 10-20 mg/sq. foot
D. 500-1000 mg/sq. foot
39. Ans. A 100-200 mg/sq. foot Ref: Park TEXTBOOK OF S
Dose of malathion used for residual insecticidal action is
100-200 mg/square foot area.
Dose of DDT used for residual insecticidal action is also
100-200 mg. per square foot area.
40. Q. The breeding place for anopheles mosquito is:
A) Dirty water
B) Seawater
C) Free flowing water
D) Clean water
41. D) Clean water Ref: Park textbook of S.P.M
In general, the Anopheline prefer clean water for breeding
Culicines prefer dirty and polluted water;
Aedes prefer artificial collections of water.
The MANSONIA breeds in water containing certain types
aquatic vegetation.