malaria prophylaxis/mosquito repellent

[Guest guest]

Hey Pete,

I have tried many different things from various

repellents to a little noise generator but;

 

I highly suggest -and the CDC recommends a 20 - 23%

DEET repellent.

A few years ago a rather comprehensive test of

reppellents showed this to be the best.

None of the various herbals or skin so soft or ....

worked for long enough to be effective.

Here in the states there is a repellent that has the

DEET in a time release oil base.

This also limits the skin absorption of the DEET.

 

Indoors one needs a good light weight mosquito net for

sleeping. Various incenses also work nicely to repel

the little beasties while you are awake and indoors.

Doc

BTW

stronger DEET solutions do not increase effectiveness

but do become more toxic.

 

Based on a 2002 study:

 

* A product containing 23.8% DEET provided an

average of 5 hours of protection from mosquito bites.

* A product containing 20% DEET provided almost 4

hours of protection

* A product with 6.65% DEET provided almost 2

hours of protection

* Products with 4.75% DEET and 2% soybean oil were

both able to provide roughly 1 and a half hour of

protection.

 

Choose a repellent that provides protection for the

amount of time that you will be outdoors. A higher

percentage of DEET should be used if you will be

outdoors for several hours while a lower percentage of

DEET can be used if time outdoors will be limited. You

can also re-apply a product if you are outdoors for a

longer time than expected and start to be bitten by

mosquitoes.

 

 

 

--- Pete Theisen <petet wrote:

 

Is there any benefit to mosquito repellent? If I read

this correctly she

doesn't have malaria *yet* and is looking for a

*preventive*.

 

Regards,

 

Pete

 

I am only one; but still I am one.

I cannot do everything, but still I can do something;

I will not refuse to do the something I can do.

- Helen Keller

 

 

 

 

 

Read only the mail you want - Mail SpamGuard.

 

[Guest guest]

I wondered if this might be of some interest,

 

Best wishes,

 

 

Public release date: 16-Jul-2004

[ Print Article | E-mail Article | Close Window ]

 

Contact: Michael Bernstein

m_bernstein

202-872-6042

American Chemical Society

 

Cinnamon oil kills mosquitoes

NOTE FOR REPORTERS: The statement in our original news release (distributed

7-15) that cinnamon oil can " kill mosquito larvae more effectively than

DEET " is misleading since we neglected to point out that DEET is most

commonly used in insect repellants, not as a larvicide. We apologize for not

making this clear. Please disregard the previous version of this news

release and use the following version.

Cinnamon oil shows promise as a great-smelling, environmentally friendly

pesticide, with the ability to kill mosquito larvae, according to a new

study published in the July 14 issue of the Journal of Agricultural and Food

Chemistry, a peer-reviewed journal of the American Chemical Society, the

world’s largest scientific society.

 

The researchers also expect that cinnamon oil could be a good mosquito

repellant, though they have not yet tested it against adult mosquitoes.

 

Besides being a summer nuisance, mosquitoes pose some major public health

problems, carrying such deadly agents as malaria, yellow fever and West Nile

virus. While conventional pesticide application is often effective in

controlling mosquito larvae before they hatch, repeated use of these agents

has raised serious environmental and health concerns.

 

" These problems have highlighted the need for new strategies for mosquito

larval control, " says Peter Shang-Tzen Chang, a professor in the School of

Forestry and Resource Conservation at National Taiwan University and lead

author of the paper. Scientists are increasingly turning to more benign

natural chemicals to ward off mosquitoes and other pests.

 

Chang and his coworkers tested eleven compounds in cinnamon leaf oil for

their ability to kill emerging larvae of the yellow fever mosquito, Aedes

aegypti. " Four compounds — cinnamaldehyde, cinnamyl acetate, eugenol and

anethole — exhibited the strongest activity against A. aegypti in 24 hours

of testing, " Chang says.

 

Larvicidal activity is judged with a measurement called LC50. " The LC50

value is the concentration that kills 50 percent of mosquito larvae in 24

hours, " Chang explains. Lower LC50 translates into higher activity, because

it takes a lower concentration to kill larvae in the same amount of time.

All four compounds had LC50 values of less than 50 parts per million (ppm),

with cinnamaldehyde showing the strongest activity at an LC50 of 29 ppm.

 

Other common essential oils, such as catnip, have shown similar promise in

fighting off mosquitoes, but this is the first time researchers have

demonstrated cinnamon’s potential as a safe and effective pesticide,

according to Chang.

 

Cinnamaldehyde is the main constituent in cinnamon leaf oil and is used

worldwide as a food additive and flavoring agent. A formulation using the

compound could be sprayed just like a pesticide, but without the potential

for adverse health effects — plus the added bonus of a pleasant smell.

 

Bark oil from the Cinnamomum cassia tree is the most common source of

cinnamaldehyde, but the tree used in this study — indigenous cinnamon, or

Cinnamomum osmophloeum — has been of interest to researchers because the

constituents of its leaf oil are similar to those of C. cassia bark oil. The

leaves of C. osmophloeum, which grows in Taiwan’s natural hardwood forests,

could be a more economical and sustainable source of cinnamon oil than

isolating it from bark, Chang says.

 

Though the team only tested the oil against the yellow fever mosquito,

cinnamon oil should prove similarly lethal to the larvae of other mosquito

species, the researchers say. In further studies they plan to test cinnamon

oil against other types of mosquitoes as well as different commercial

pesticides.

 

" We think that cinnamon oil might also affect adult mosquitoes by acting as

a repellant, " Chang says. The researchers haven’t yet tested this theory,

but they plan to find out in the near future.

 

The Council of Agriculture of the Executive Yuan, a government agency in

Taiwan, provided support for this research.

 

 

— Jason Gorss

 

 

###

The online version of the research paper cited above was initially published

June 10 on the journal's Web site. Journalists can arrange access to this

site by sending an e-mail to newsroom or calling the contact person

for this release.

 

 

 

 

Chinese Medicine

Chinese MedicineOn Behalf Of Doc

Wednesday, 18 May 2005 5:04 PM

Chinese Medicine

Re: malaria prophylaxis/mosquito repellent

 

 

Hey Pete,

I have tried many different things from various

repellents to a little noise generator but;

 

I highly suggest -and the CDC recommends a 20 - 23%

DEET repellent.

A few years ago a rather comprehensive test of

reppellents showed this to be the best.

None of the various herbals or skin so soft or ....

worked for long enough to be effective.

Here in the states there is a repellent that has the

DEET in a time release oil base.

This also limits the skin absorption of the DEET.

 

Indoors one needs a good light weight mosquito net for

sleeping. Various incenses also work nicely to repel

the little beasties while you are awake and indoors.

Doc

BTW

stronger DEET solutions do not increase effectiveness

but do become more toxic.

 

Based on a 2002 study:

 

* A product containing 23.8% DEET provided an

average of 5 hours of protection from mosquito bites.

* A product containing 20% DEET provided almost 4

hours of protection

* A product with 6.65% DEET provided almost 2

hours of protection

* Products with 4.75% DEET and 2% soybean oil were

both able to provide roughly 1 and a half hour of

protection.

 

Choose a repellent that provides protection for the

amount of time that you will be outdoors. A higher

percentage of DEET should be used if you will be

outdoors for several hours while a lower percentage of

DEET can be used if time outdoors will be limited. You

can also re-apply a product if you are outdoors for a

longer time than expected and start to be bitten by

mosquitoes.

 

 

 

--- Pete Theisen <petet wrote:

 

Is there any benefit to mosquito repellent? If I read

this correctly she

doesn't have malaria *yet* and is looking for a

*preventive*.

 

Regards,

 

Pete

 

I am only one; but still I am one.

I cannot do everything, but still I can do something;

I will not refuse to do the something I can do.

- Helen Keller

 

 

 

Read only the mail you want - Mail SpamGuard.

 

 

http://babel.altavista.com/

 

and adjust

accordingly.

 

 

 

 

 

----------

--

[Guest guest]

Malaria isn't an issue where I wildcraft but mosquitos (and ticks and

chiggers) are.

I use herbal repellent on my flesh and clothing, refreshing it often.

The essential oils in it dissipate fast. My timing for reapplication

comes from observing nature; as often as a heavy chain smoker

needs to light up another cigarette.

If they can make the time, so can I.

 

If you use an herbal repellent, in addition to the essential oil's

quality to repel bugs take into consideration how it will affect you.

Its all medicine.

 

I use Deet on my clothing (but not near my face).

Yes clothing. I always keep my arms, legs, head plus neck covered

(drape a babushka down from under my hat). They sell net mosquito

clothing but I prefer baggy cotton shirts and baggy cotton pants.

 

If you're not going to be in " the field " , I'm sure one can find

stylish/ fashion statement ;-) loose clothing.

 

Penel

[Guest guest]

which creates a freakish thought

can the mosquito implant a malarial pod and it survive if the Wei is

firmly in place?

 

what constitutes the APF?

 

when in the East i would regularly find people who simply were not

infected, or were and did not develop

infection, or did in a minor form.

 

and there were those who stayed indoors and took antimalarials and still

managed to come down

with if not the full blown Hot Cold Chill pattern, an attenuated one

 

can it be possible the insect has learned over millenia to not venture

to drink a blood meal

from a person with Full Wei?

 

which would beg the Q, how can one create an optimal Wei layer?

 

use wei extra points?

tone up LU?

 

which again begs the Q, what triggers to use to establish a wayward Wei?

or a Deficient LU yin?

 

holmes

at www.acu-free.com

 

 

 

 

 

 

 

 

hyldemoer wrote:

 

> Malaria isn't an issue where I wildcraft but mosquitos (and ticks and

> chiggers) are.

> I use herbal repellent on my flesh and clothing, refreshing it often.

> The essential oils in it dissipate fast. My timing for reapplication

> comes from observing nature; as often as a heavy chain smoker

> needs to light up another cigarette.

> If they can make the time, so can I.

>

> If you use an herbal repellent, in addition to the essential oil's

> quality to repel bugs take into consideration how it will affect you.

> Its all medicine.

>

> I use Deet on my clothing (but not near my face).

> Yes clothing. I always keep my arms, legs, head plus neck covered

> (drape a babushka down from under my hat). They sell net mosquito

> clothing but I prefer baggy cotton shirts and baggy cotton pants.

>

> If you're not going to be in " the field " , I'm sure one can find

> stylish/ fashion statement ;-) loose clothing.

>

> Penel

>

>

>

>

 

 

 

 

[Guest guest]

Penel,

You make some excellent points.

If you are able and willing to re-apply an herbal

repellent on an hourly-or more often- basis then there

are some that work. I am not usualy able to interupt

my volunteer work to do so, and my memory precludes

this solution so DEET it is for me. [The brand of DEET

I use is Sawyer Controlled Release which lasts longer

than standard 20% DEET and absorbs into the body less]

 

You also bring up clothing and that has always been my

first line of defense. Long sleeves long pants and all

quite baggy, and as they say in the military never

forget your cover (hat).

I look best in loose cloths any way, ;-) and always

wear a hat or kipah.

 

Doc

--- hyldemoer <hyldemoer wrote:

 

Malaria isn't an issue where I wildcraft but mosquitos

(and ticks and

chiggers) are.

I use herbal repellent on my flesh and clothing,

refreshing it often.

The essential oils in it dissipate fast. My timing for

reapplication

comes from observing nature; as often as a heavy chain

smoker

needs to light up another cigarette.

If they can make the time, so can I.

 

If you use an herbal repellent, in addition to the

essential oil's

quality to repel bugs take into consideration how it

will affect you.

Its all medicine.

 

I use Deet on my clothing (but not near my face).

Yes clothing. I always keep my arms, legs, head plus

neck covered

(drape a babushka down from under my hat). They sell

net mosquito

clothing but I prefer baggy cotton shirts and baggy

cotton pants.

 

If you're not going to be in " the field " , I'm sure one

can find

stylish/ fashion statement ;-) loose clothing.

 

Penel

 

 

 

I am only one; but still I am one.

I cannot do everything, but still I can do something;

I will not refuse to do the something I can do.

- Helen Keller

 

 

 

Mail

Stay connected, organized, and protected. Take the tour:

http://tour.mail./mailtour.html

[Guest guest]

Just to add to the plethora: I saw oil of catnip was more effective

than DEET in a study but that the patent/application was snapped up

by the pharm. company that did the test. Of course, I have no idea

of its staying power, but for those who are will to frequently re-

apply: extra armor in the armamentarium.

Cameron

 

 

Chinese Medicine , Doc <Doc@s...>

wrote:

> Penel,

> You make some excellent points.

> If you are able and willing to re-apply an herbal

> repellent on an hourly-or more often- basis then there

> are some that work. I am not usualy able to interupt

> my volunteer work to do so, and my memory precludes

> this solution so DEET it is for me. [The brand of DEET

> I use is Sawyer Controlled Release which lasts longer

> than standard 20% DEET and absorbs into the body less]

>

> You also bring up clothing and that has always been my

> first line of defense. Long sleeves long pants and all

> quite baggy, and as they say in the military never

> forget your cover (hat).

> I look best in loose cloths any way, ;-) and always

> wear a hat or kipah.

>

> Doc

> --- hyldemoer <hyldemoer> wrote:

>

> Malaria isn't an issue where I wildcraft but mosquitos

> (and ticks and

> chiggers) are.

> I use herbal repellent on my flesh and clothing,

> refreshing it often.

> The essential oils in it dissipate fast. My timing for

> reapplication

> comes from observing nature; as often as a heavy chain

> smoker

> needs to light up another cigarette.

> If they can make the time, so can I.

>

> If you use an herbal repellent, in addition to the

> essential oil's

> quality to repel bugs take into consideration how it

> will affect you.

> Its all medicine.

>

> I use Deet on my clothing (but not near my face).

> Yes clothing. I always keep my arms, legs, head plus

> neck covered

> (drape a babushka down from under my hat). They sell

> net mosquito

> clothing but I prefer baggy cotton shirts and baggy

> cotton pants.

>

> If you're not going to be in " the field " , I'm sure one

> can find

> stylish/ fashion statement ;-) loose clothing.

>

> Penel

>

>

>

> I am only one; but still I am one.

> I cannot do everything, but still I can do something;

> I will not refuse to do the something I can do.

> - Helen Keller

>

>

>

> Mail

> Stay connected, organized, and protected. Take the tour:

> http://tour.mail./mailtour.html

[Guest guest]

Cameron,

 

I read that but more reading showed that it was

unfortunately being compared to 3.7% DEET solution

 

As much as I end up using repellent I wish someone

would come up with something as effective or close to

as effective as 23% DEET.

 

I hate the smell of DEET

I hate the toxic reality of it

but i like Dengue and Malaria even less

so since i'm not evolved enough to just wish the

mozzys away.....

 

 

Doc

BTW i tried to find an essential oil of catnip but

could find none in local herb shops

 

--- cameronhollister <cameronhollister

wrote:

 

Just to add to the plethora: I saw oil of catnip was

more effective

than DEET in a study but that the patent/application

was snapped up

by the pharm. company that did the test. Of course, I

have no idea

of its staying power, but for those who are will to

frequently re-

apply: extra armor in the armamentarium.

Cameron

 

 

 

I am only one; but still I am one.

I cannot do everything, but still I can do something;

I will not refuse to do the something I can do.

- Helen Keller

 

 

 

 

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