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
