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Currently, control of malaria vectors relies almost entirely on indoor residual-spraying (IRS) and long-lasting insecticide-treated nets (LLINs. These vector control tools have successfully reduced mosquito population densities and malaria by targeting indoor-feeding (endophagic) and indoor-resting (endophilic) mosquitoes. The most successful IRS chemical active used to date is DDT, which, in addition to killing mosquitoes, also reduces indoor mosquito densities consequently reducing malaria transmission.
Literature shows that much of the success of DDT is due to excito-repellency. An excito-repellent is defined as a chemical that causes insects to make undirected movements that set them apart from insecticides. Excito-repellency results from insect's physical contact with chemicals on treated surfaces or with vapour particles at a distance . It has been demonstrated that volatile DDT can induce neural excitement in insects and importantly, it was observed that insects exposed to sub-lethal concentrations of DDT move towards the light explaining why mosquitoes are likely to quickly leave a sprayed dwelling. Excito-repellency was also originally seen as a beneficial feature of pyrethroid treated bednets to reduce the probability of mosquitoes developing resistance to insecticides through lower contact with insecticides. It is known that DDT and pyrethroids act on the voltage-gated sodium channel proteins found in insect nerve cell membranes, disrupting transmission of nerve impulses thereby causing mortality. Cross resistance between DDT and pyrethroids is conferred by point mutations on the voltage gated sodium channel in mosquitoes indicating a common mode of toxic action for these insecticides on mosquitoes.
Wiki User
∙ 10y ago
Wiki User
∙ 10y agoAng bobo niyo naman kasama ko di ko rin alam eh?...... :)=)
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When was RID Insect Repellent created?
RID Insect Repellent was created in 1956.
What is a insect repellent?
Cedar oil is a natural insect repellent. It works on fleas all the way up to snakes.
How do you protect myself from insect bites?
Use insect repellent.
Is insect repellent an example of biotechnology?
No
Where can you buy Aerogard insect repellent?
In most supermarkets where the insect sprays are.
How do you kill toe biters?
you get insect repellent and spray it on your toes, they kill them and get rid of them. you can get insect repellent at the shops such as: Coles, Woolworths, Bilo etc.
How can buy d-15 amway insect repellent?
D-15 Amway insect repellent is available at a number of retailers. It can be purchased at the Home Depot or Lowes.
Does insect repellent expire?
Insect repellent can and does expire. Over time it will lose its effectiveness. The expiration date should be located on the can itself.
Where can you buy tabard insect repellent in the US?
Tabard insect repellent is one of the world's leading insect repellents on the market. However, as of June 2014, Tabard is not currently available for purchase in the United States.
What is a sentence using the word repellent?
If you go into the woods, you should wear insect repellent. The candidate considered political fundraising repellent, but necessary.
Who is the target audience of off insect repellent?
familys
Procedures in making an insect repellent out of orange peel extract?
Orange peels can be used to make an effective insect repellent. The active ingredient can be extracted into a liquid solution.
