If they aren't from the natural, organic product line, then insecticides aren't used in the case of Organic Gardening. The standard chemical, commercial, conventional, synthetic insecticides may have instant name recognition among gardeners. They may be more available and more economically priced. But they aren't supposed to be used.
One reason lies in their non organic nature. Another lies in the side effects of their use. For example, some non organic insecticides are target sprays in their effects being directed toward a specific pest population. But others aren't.
Still another lies in the strategies that organic gardening emphasizes. For example, organic gardeners turn to mechanical means such as swatting. Or they try cultural means such as improving plant and soil health. Or they attempt biological means such as bringing in natural enemies to turn the pests into food sources. In the way of a common beneficial among organic gardeners, favorite enemy is the ladybug [Coccinellidae]
Insect repellents are useful to prevent bites, skin eruptions and rashes that may be caused by an insect's bite. They die because they get poisoned by the repellents hence they kill them instantly.
No, mosquito repellents do not repel. They instead block the mosquito's sensors so they are not aware that you are there, the repellent basically hides you from the insect.
The main active ingredients in insect repellents are DEET, picaridin, IR3535, and oil of lemon eucalyptus. These chemicals work by creating a barrier that interferes with insects' ability to detect or be attracted to humans. It is important to use insect repellent according to the product label and avoid contact with eyes or broken skin.
Air Wick Insect Repellents are candles, sprays, and creams that the company Air Wick produces. These items are known to repel bugs.
Not strong acids or alkali normally - they work in more subtle ways. Many are organophosphates or similar - read the organophosphate article on wiki for more...
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.
Possible as ceder contains plant synthesized insect repellents.
Most mosquito repellents will not work on bees. In fact, there are certain fragrances in some mosquito repellents that will actually attract bees.
Sometimes better, there are several "green" sprays-ECOPCOACU for example that kill many bugs faster than their chemical counterparts.
Mosquito nets and insect repellents are useful in helping to avoid contact with the bugs that cause it
I know of none that do.
None of them work long term for anything.