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Flashcards in Insect vector control Deck (18)
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1

Larviciding

killing larvae
major part of Onchocerciasis Control Programme

2

Anthropophilic

Describes mosquitoes that prefer to take blood meals from humans.

3

Endophilic

An endophilic mosquito is a mosquito that tends to inhabit/rest indoors

4

How do LLIN work?

a.k.a. long lasting insecticide nets
~ insecticide is within net fibres and leaks out very slowly
~ lasts for 5 years

5

Anopheles, Culex mosquitoes: Insecticide used and major application.

DDT
Residual house spraying

6

Anopheles, Culex mosquitoes: Insecticide used and major application #2.

Pyrethroids
Impregnated bed nets

7

Aedes, Culex mosquitoes: Insecticide used and major application.

OPs and pyrethroids
Larviciding, misting, fogging

8

Glossina tsetse flies: Insecticide used and major application.

Pyrethroids
Traps and targets

9

Glossina tsetse flies: Insecticide used and major application #2.

DDT, dieldrin and endosulfan
Aerial application and ground spraying

10

Simulium black flies: Insecticide used and major application.

Temephos
Larvicides (OCP)

11

Triatoma bugs: Insecticide used and major application.

Deltamethrin
Spraying (SCI)

12

Genetic resistance

alterations in target site, reducing insecticide binding
e.g. kdr = knock down resistance gene

13

Metabolic resistance

increases in rate of insecticide breakdown through amplification or modification of enzymes
e.g. esterases, cytochrome P450s

14

Cross-resistance

Resistance to one or more drugs that occurs as a result of previous exposure to a similar drug

15

SIT

a.k.a. Sterile insect technique
eradicating flies with gamma ration makes them sterile causing competition between sterile and WT = reduction in no. of flies

16

Bio-insecticides

bacteria produce Cry and Cut port-forming toxins (from plasmid) that lyse larval midgut epithelial cells

17

Mosaic treatment

when two or more insecticides are applied to different areas infested by the same insect population

18

RIDL

a.k.a. Release of male Insect carrying Dominant Lethal genes