Introduction to mosquitoes
This page is about a small minority of the female mosquitoes
that have a craving for blood. How they find you and how it is possible
to survive them.
The hunter
These
mosquitoes are like the galactic hunters in the Predator movies; to find their
prey they use smell, carbon dioxide, heat, humidity and motion detection,
and infrared light. After using it's other sensors to decide that something
interesting is approaching, the mosquito start looking for heat and humidity.
Mosquito repellents cloak the sensors to detect humidity, the final guiding
device, and that is enough to make the mosquito miss its mark.
DEET
In most commercial repellents the working compound is something called DEET.
According to warnings on the bottle you should be restrictive when using repellents
containing it. Don`t use it too often, don't cover large parts of your body,
and children should never use it. It may affect their reproduction chances
due to DEET`s mutagene qualities and its nasty way of accumulating in the
body. According to one Swedish medical recommendation, repellents with higher
DEET concentration than 50% are toxic. If all this has scared you away from
using products containing it, you could have a look at the manufacturer's
home page, deet.com, and they will have
the evidence to convince you of its splendid qualities.
Natural protection
To start with there are conditions that naturally reduce
the number of mosquitoes.
• Rain
• Wind
• Short vegetation
• Far away from stagnant water
• Avoid being outside late in the evenings
• Smell
Humans have different individual smells and mosquitoes are more attracted
to some of us.
• Altitude
When you get 900 meters and higher, the mosquitoes should be more or less
gone.
Physical protection
• Long sleeves
• Thick clothes
• Gloves
• Mosquito hat or jacket
Nature based repellents
• Smoke
It need to be a real fire, the mosquito coils that can be hung from the belt
will not do the trick. You have to be in the smoke. Mosquitoes will find every
part of your body that is not. There are some disadvantages to this method
though; everything you wear is going to have a smoky scent - which is not
all that bad - and I doubt the healthiness of all the smoke you inhale while
sitting in it.
• Beckolja
I`m not sure what this could be in any other language, possibly pitch oil,
but in Swedish it is called beckolja, a rest product when making
pine oil. It smells like tar and some consider this to be the king of repellents.
Others mix it 50/50 with something called jungle oil in Sweden to
get an even stronger repellant in their opinion.
There are many repellents made of different plants from around the world claiming
to be great when fighting mosquitoes, and there are equally many secret repellant
recipes made of herbs and who knows what sold at fairs and thru home pages.
I once tried a home made repellant with secret ingredients and it worked well.
Below I present two potent plants that can be used by the aspiring home brewer.
You could also try garlic and lemon balm, Melissa officinalis
• Ledum palustre
Has a very strong and aromatic smell. Supposedly you can take the leaves and
rub them against your skin until the sap turns it green.
I have tried to rub these leaves against my skin, and judging from that experience,
I would guess my skin would turn red before it gets any chance to become green.
The small, thick leaves of Ledum palustre are pretty hard. If the
strong scent of the plant would be the reason for it to be a good mosquito
repellant, then one could expect to find less mosquitoes where it grows, but
unfortunately they don't seem to be bothered by it.
As a side note, the leaves have a number of other useful applications too.
For example it has a history of being used as a hallucinogen and aphrodisiac,
and Labrador Tea is made of the leaves.
• Achillea millefolium
This plant is used in the same way as Ledum palustre above. The salicylic
acid in this plant has proved to be a good mosquito repellant. It is just
as effective as DEET if used in the same concentration. Used as above you
can expect it to work less than an hour. Achillea millefolium has
a long history as a medicinal plant, and has been used to cure a large variety
of affections.
Chemical repellents
There are a plethora of chemical repellents with varying mixes of different
poisons, but like I wrote above, DEET is the choice of the day for many manufacturers.
If you haven`t found anything else that work, a chemical repellant probably
will. If possible, you should use the repellant on clothes, but if you necessarily
have to put it on your skin try to be restrictive in its use. There are different
varieties of mosquitoes in the world and all repellents will not work on every
variety. If your favorite repellant doesn't seem to be working, try a local
brand instead.
Miscellaneous gadgets
• Gas light with an electrified net around it. Could be pretty
useless during the midnight sun, which also happens to be the main season
for mosquitoes.
• Electric rackets. Fun, but not really a long-term solution.
• Radio transmitter with a specific frequency. Works great according
to testimonials.
IMPORANT!
If you know that you will get severe allergic reactions from mosquito
bites, consult your doctor before coming, and don't forget to bring with you
medicine that have proven to work.
A final note
What ever technique you choose to use, don't expect the mosquitoes
to disappear around you. They may not be able to suck your blood, which of
course is an improvement, but you will be surrounded by a whining cloud of
mosquitoes looking for an opening in your defense. Depending on what kind
of person you are, it could be a small annoyance or a major source of irritation.
"I'm going straight to the car. Can't take the mosquitoes. See you there."
A note left on the hiking trail between Kebnekaise and Nikkaluokta.
Printed from: www.slowlife.se/eng/misc/mosquitoes.php
