| Pages:
1
2 |
tito-o-mac
Hazard to Others
Posts: 117
Registered: 30-6-2007
Member Is Offline
Mood: No Mood
|
|
Mozzie alert
Help!! I live in Asia and my area has been classified by the authorities as a dengue hotspot. Two of my neighbours have already been infectedby dengue
fever and taken to hospital. I urgently request a need of a suggestion of a chemical to chase away the incoming onslaught. I have burnt mosquito coils
but they are utterly useless to the effect that they even attract mosquitos. This requires an urgent call to arms to obtain a chemical effective
enough to be able to effectively chase away the dengue mosquitos! Anti mosquito products have disappeared of the shelves of shops and I have to wait
for a week to resupply (why so slow?)! Its going to be 5 days of head to head fighting with dengue mosquitos before the authorities clear the place.
I'm armed with only a semi-effective 250ml anti mosquito repellant(note that it has only a one hour effect, most of the time less than half an hour)
and a fly swatter, I'm scouring the Internet to find a chemical which chemical properties help repel mosquitos for long periods of times.
I request that everyone pit their sugestions urently. I am highly thankful of your support. Remember, everyday the mosquito army's scouts move closer
everyday...
[Edited on 6-7-2007 by tito-o-mac]
[Edited on 12-7-2007 by tito-o-mac]
|
|
|
YT2095
International Hazard
Posts: 1091
Registered: 31-5-2003
Location: Just left of Europe and down a bit.
Member Is Offline
Mood: within Nominal Parameters
|
|
for a start dump any water you have lying around outside and in, Napthalene (even the P-DCB blocks used in toilets will help), place them around your
house.
Anything X-methrin based will kill them also.
grow Marigolds.
[Edited on 6-7-2007 by YT2095]
\"In a world full of wonders mankind has managed to invent boredom\" - Death
Twinkies don\'t have a shelf life. They have a half-life! -Caine (a friend of mine)
|
|
|
tito-o-mac
Hazard to Others
Posts: 117
Registered: 30-6-2007
Member Is Offline
Mood: No Mood
|
|
thanks, I'm doing that everyday and its effects are significant to a certain extent. I'm trying out eucalyptus plants as a anti mosquito repellant:
that'll extent my safety to 1 more day.
one more thing: do moth balls work? they're napthalene right?
[Edited on 6-7-2007 by tito-o-mac]
|
|
|
tito-o-mac
Hazard to Others
Posts: 117
Registered: 30-6-2007
Member Is Offline
Mood: No Mood
|
|
The abandoned ricefields in our area breed hordes of fierce mosquitoes, and at dusk they attack in force. But it's hard to tell which is worse, the
mosquitoes or the commercial repellents. The mosquitoes are horrific -- they're highly aggressive, you can be bitten hundreds of times without
protection, it's torture, impossible to bear.
The alternative to repellants is incense coils, which you burn -- they fill the air with smoke containing insecticides. And indeed the mosquitoes are
attracted?! I got hold of some local lemon grass ( a clump about 15" across) They said rubbing it on your skin will work...
|
|
|
tito-o-mac
Hazard to Others
Posts: 117
Registered: 30-6-2007
Member Is Offline
Mood: No Mood
|
|
I figured out that the stalk is richer in that mosquito repellant, so I'm also using it.
Lemon grass is also an effective herbal anti-fungal medicine (lemongrass tea) and in Puerto Rico people use the fibrous stalks as a natural
toothbrush! Clean and tingling fresh! (Try it!)
[Edited on 6-7-2007 by tito-o-mac]
|
|
|
tito-o-mac
Hazard to Others
Posts: 117
Registered: 30-6-2007
Member Is Offline
Mood: No Mood
|
|
According to the CRC Ethnobotany Desk Reference by Tim Johnson, lemon grass (Cymbopogon citratus) is traditionally used in various parts of the world
as an antiseptic, antispasmodic, carminative, cyanogenetic, dentrifice, diaphoretic, diuretic, emmenagogue, expectorant, pectoral, preventative
(cold), stimulant, sudorific, and tonic, used to treat common cold, consumption, cough, depurative, dyspepsia, elephantiasis, fever, flu, gingivitis,
headache, hypertension, insecticide, leprosy, malaria, mouth sores, neuritis, pneumonia, pyorrhea, rheumatism, sprains, and toothache.
|
|
|
roamingnome
Hazard to Others
Posts: 363
Registered: 9-9-2006
Member Is Offline
Mood: No Mood
|
|
since you typed in ALL CAPS i can only think to help.....
http://asia-sourcing.net/new-products/A-Z/1/1-octene-3-ol.ht...
since you are in asia... chemicals might be easier to get...
The use of Octenol in combination with CO2-baited solid-state Army miniature (SSAM) mosquito traps was evaluated under operational conditions while on
deployment at the Shoalwater Bay Training area, Queensland Australia, during Operation Tandem Thrust 2001. The addition of octenol increased the
number of mosquitoes captured by 5 fold. Additionally, a greater number of species of mosquitoes were captured in traps baited with octenol + CO2 than
those baited with only CO2
good luck....
|
|
|
bereal511
Hazard to Others
Posts: 162
Registered: 9-8-2005
Location: Madison, WI
Member Is Offline
Mood: No Mood
|
|
Have you eaten your daily dose of garlic?
As an adolescent I aspired to lasting fame, I craved factual certainty, and I thirsted for a meaningful vision of human life -- so I became a
scientist. This is like becoming an archbishop so you can meet girls.
-- Matt Cartmill
|
|
|
franklyn
International Hazard
Posts: 3026
Registered: 30-5-2006
Location: Da Big Apple
Member Is Offline
Mood: No Mood
|
|
You may try improvising insect traps , of course you'll catch much more
than just mosquitos. At some distance surounding your residence place
3 or 4 white linen sheets soaked in water soluble adhesive over a frame
illuminated from within by a flourescent lamp.
Update
Know your enemy _
http://www.entomology.cornell.edu/MedEnt/MosquitoFS/Mosquito...
http://www.howstuffworks.com/mosquito1.htm
CO2 Traps _
http://home.howstuffworks.com/mosquito-magnet.htm
Even when used correctly, a mosquito trap takes time. It has to be in place four
to six weeks to have a significant effect on the mosquito population. It takes
that long for existing eggs to hatch and get captured. Once they have been
trapped, the population starts to decline.
Control measures _
http://edis.ifas.ufl.edu/BODY_IN171
.
[Edited on 6-7-2007 by franklyn]
|
|
|
hashashan
Hazard to Others
Posts: 255
Registered: 10-10-2006
Member Is Offline
Mood: No Mood
|
|
cats, yeah the furry animals. they are great to kill insects. start living in harmony with household animals. Cats will be great. or start growing a
chamellion farm
|
|
|
Ozone
International Hazard
Posts: 1269
Registered: 28-7-2005
Location: Good Olde USA
Member Is Offline
Mood: Integrated
|
|
99% DEET works for me in south Louisiana (where the mosquitos will carry off your dog). We have at least 6 species here including the bastard asian
tiger mosquitos .
That's m-N,N-diethyltoluamide if you can get the pure compound, just spray it on (seems to be good for hours). Tastes like shit though!
[Edit] there's some stuff regarding nepetalactone (from catnip), but no synthesis for DEET?! Shame!
existing thread:
http://www.sciencemadness.org/talk/viewthread.php?tid=2809&a...
a synthesis for DEET:
http://www.miracosta.edu/home/dlr/211exp7.htm
Perhaps we should outline syntheses which can avoid the "nearly there" precursor and, of course, the ever elusive thionyl chloride.
BEst of luck,
O3
[Edited on 6-7-2007 by Ozone]
-Anyone who never made a mistake never tried anything new.
--Albert Einstein
|
|
|
Twospoons
International Hazard
Posts: 1282
Registered: 26-7-2004
Location: Middle Earth
Member Is Offline
Mood: A trace of hope...
|
|
Citronella oil is supposed to repel mozzies. I'm not sure how effective it is, but theres a solid market for the stuff. And it smells nice too (sort
of lemony).
Helicopter: "helico" -> spiral, "pter" -> with wings
|
|
|
tito-o-mac
Hazard to Others
Posts: 117
Registered: 30-6-2007
Member Is Offline
Mood: No Mood
|
|
Day two of mosquito onslaught
Arggh I've been bitten by a salvo of ruthless ordinary mosquito ( those that suck blood and not have any dangerous disease) I've mastered the art of
making HOMeR-"homemade organic mosquito repellant" that should kep them at bay:
To make HOMeR
-sustainable: made entirely from locally available renewable resources
-empowering: processed entirely by the end-user as needed
-eco-friendly: won't boil the planet or blow a hole in the sky. (don't forget today is Earth Day. ( anyone going for Live Earth?)
Chop up the cores of five or six stalks of lemon grass and put them in a blender with a tumblerful of spirits, blend thoroughly. Can be further
diluted by adding up to half as much water. Next, take some peppermint plants, and again chop them and blend. Add to solution.
I used whatever booze I could find in my dad's booze cupboard, with my dad's permission (we hardly drink at all, but people keep giving it to us), and
strained it into a sprayer. The extremely cheap Chinese brandy went first, the Absolut Swedish vodka worked even better and I didn't smell quite as
much like winos, and then I used London Dry Gin. When I get round to distilling fuel ethanol, I'll use that.
The only problem is that it goes stale after about a week and loses effectiveness -- does anyone know why, or how to prevent it going stale?
Can you find a better way? These are some of the kinds of preparations you can make with herbs:
tinctures
infusions
decoctions
fluid extracts
essential oils
I heard that the amazing NEEM tree also works well. First formulated in India, the low-cost neem oil is mixed with 1-2% coconut oil
|
|
|
tito-o-mac
Hazard to Others
Posts: 117
Registered: 30-6-2007
Member Is Offline
Mood: No Mood
|
|
Creating an Artificial Cow
To create an artificial cow, you need to have three things:
A way to produce carbon dioxide
A way to create warmth and moisture
A way to produce the plant chemicals that cows produce
If you have these three things, you have everything you need to attract many varieties of mosquitoes. A machine that combines an artificial cow with
an automatic vacuuming system would make a very effective mosquito trap.
Several manufacturers have created such a machine, and one of them is called the "Mosquito Magnet." The way these machines work is quite ingenious.
The source of the carbon dioxide in the mosquito trap is propane. Propane is a gas that contains carbon and hydrogen, so when you burn it you get
carbon dioxide and water vapor. Traditionally, we burn propane with a flame, for example in a barbecue grill.
Modern mosquito traps put an interesting twist on the burning process. Instead of a flame, they "burn" the propane catalytically, using the same idea
as that used in the catalytic converter on your car.
The propane comes in and hits the catalyst -- a set of ceramic beads or a ceramic grid coated with platinum. The catalyst converts the propane
directly to heat, carbon dioxide and moisture without actually needing a flame. The advantage of this system is that you can catalyze very small
quantities of propane over a long period of time without having to worry about the flame ever going out. In addition, there are no worries about other
gases, like carbon monoxide or nitrogen oxides, being produced by the flame. The lack of a flame also cuts down on fire risks.
Completing the Trap
Carbon dioxide is not enough. To complete the chemical signature you add a cartridge that contains either octenol (a generic molecule that simulates
plant chemicals) or Lurex (a proprietary mixture that simulates sweat chemicals). These chemicals act as strong attractants for different types of
mosquitoes. Lurex-type chemicals work best on imported tiger mosquitoes, while octenol works best on mosquitoes native to the United States.
By mixing the chemical attractant with the carbon dioxide and moisture and then blowing it out into the surrounding air, the trap creates a plume of
gas that mosquitoes find irresistible. They will fly upwind to follow the plume to its source.
When the mosquitoes get to the mosquito trap, they encounter a vacuum created by a fan, just like a vacuum cleaner. The fan sucks in air and the
mosquitoes. The mosquitoes are trapped in a net bag, where they dehydrate and die.
Can anyone tell me more on how to build this thing?
|
|
|
tito-o-mac
Hazard to Others
Posts: 117
Registered: 30-6-2007
Member Is Offline
Mood: No Mood
|
|
Ugh I'm vomiting!
|
|
|
The_Davster
A pnictogen
Posts: 2861
Registered: 18-11-2003
Member Is Offline
Mood: .
|
|
Mosquitos eh? I have spent the last 4 days camping in the northern Canadian bush, so mosquito heaven. Nothing works better than a good smoky fire.
Get a nice hot fire going, and add green brush often to generate smoke. The DEET containing repellents do not work nearly as good as this. I was not
bitten for the last couple days after my clothes were impregnated with smoke, various 100% and 25% DEET repellents, and grime.
|
|
|
Nerro
National Hazard
Posts: 596
Registered: 29-9-2004
Location: Netherlands
Member Is Offline
Mood: Whatever...
|
|
You must have smellt horrible though. Perhaps that might not be so great if you want to be able to live in a city...
#261501 +(11351)- [X]
the \"bishop\" came to our church today
he was a fucken impostor
never once moved diagonally
courtesy of bash
|
|
|
The_Davster
A pnictogen
Posts: 2861
Registered: 18-11-2003
Member Is Offline
Mood: .
|
|
| Quote: | Originally posted by Nerro
You must have smellt horrible though. |
Haha, ouch, yeah, gotta repell bears as well though lol .
I never thought of the smell aspect.
|
|
|
Nerro
National Hazard
Posts: 596
Registered: 29-9-2004
Location: Netherlands
Member Is Offline
Mood: Whatever...
|
|
What exactly in woodsmoke is it that repells the mosquitos? Perhaps it can be synthesized, it need not nessesarily be a smelly substance.
#261501 +(11351)- [X]
the \"bishop\" came to our church today
he was a fucken impostor
never once moved diagonally
courtesy of bash
|
|
|
jimmyboy
Hazard to Others
Posts: 235
Registered: 1-3-2004
Location: Texas
Member Is Offline
Mood: No Mood
|
|
wear mosquito netting
|
|
|
The_Davster
A pnictogen
Posts: 2861
Registered: 18-11-2003
Member Is Offline
Mood: .
|
|
CO2 and alkali carbonates I believe. I wonder if they are actually repelled, or if their flesh seeking abilities are impaired by the hyperabundance
of CO2 in the air, so they cannot target a host?
|
|
|
JohnWW
International Hazard
Posts: 2849
Registered: 27-7-2004
Location: New Zealand
Member Is Offline
Mood: No Mood
|
|
DIMP (dimethyl phthalate) was for many years the standard mosquito and sandfly repellant, before it was replaced by the much more costly, but
supposedly more effective, m-N,N-diethyltoluamide. I suspect that the latter was foisted upon us by a big pharmaceutical manufacturer simply because
the patents for DIMP had expired and so was much less profitable than previously. To make things worse, some preparations containing
m-N,N-diethyltoluamide are still being sold in pharmacies and supermarkets under the name "DIMP", in spite of containing no actual DIMP at all.
[Edited on 9-7-07 by JohnWW]
|
|
|
tito-o-mac
Hazard to Others
Posts: 117
Registered: 30-6-2007
Member Is Offline
Mood: No Mood
|
|
Finally the long awaited pest busters arrived and wiped out or relocated the entire breeding ground, placed BTI sandgranular insecticide as measures
to prevent the outbreak from happenning.
Another form of repellant are the Hydroyethyl Isobutyl Piperidine Carboxylate, and Ethyl Butylacetylamino-propionate. DEET - N.N
Diethyl-meta-toluamide.
here's more alternatives and options instead DEET:
Bite Blocker (key ingredient: soybean oil).
Picaridin, found in Cutter Advanced. This product has not yet been approved for children under 3. Picaridin, also known as KBR 3023, has been
available for many years in Asia, Australia, and Europe. It was recently approved for use in mosquito sprays by the EPA and has been included in the
list of repellent recommendations by the CDC.
Oil of lemon eucalyptus, found in Repel Lemon Eucalyptus, OFF! Botanicals & Fight Bite Plant-Based Insect Repellent. These products should not be
used on children under 3. Repel is 30% eucalyptus oil. Pure eucalyptus oil should never be applied to skin.
Based on a recent 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 or 2% soybean oil provide roughly 1-1/2 to 2 hours of protection.
Also, I found this article from WHO providing information on Hydroyethyl Isobutyl Piperidine Carboxylate.
[Edited on 10-7-2007 by tito-o-mac]
Attachment: Icaridin_spec_eval_Oct_2004.pdf (146kB)
This file has been downloaded 913 times
|
|
|
sparkgap
International Hazard
Posts: 1234
Registered: 16-1-2005
Location: not where you think
Member Is Offline
Mood: chaotropic
|
|
Now, now, tito-o-mac, I understand your enthusiasm about this topic (tropical mosquitoes are a PITA), but seriously, all those consecutive posts could
have been done away with the "Edit" button.
The only thing I could add would be that the only thing icaridin (picaridin is a deprecated synonym) has over DEET is that it is gentler to
synthetics. Otherwise, not significantly more effective or anything.
As I understand, concerns over the effects of phthalates on the environment were one reason behind their eventual phase-out.
sparky (~_~)
P.S. The reply below... PRICELESS. 
[Edited on 10-7-2007 by sparkgap]
"What's UTFSE? I keep hearing about it, but I can't be arsed to search for the answer..."
|
|
|
tito-o-mac
Hazard to Others
Posts: 117
Registered: 30-6-2007
Member Is Offline
Mood: No Mood
|
|
Am i spamming the message board? Please let me know if I am doing so! (Like right now?)
[Edited on 10-7-2007 by tito-o-mac]
|
|
|
| Pages:
1
2 |
![[*]](images/xpblue/default_icon.gif){kind=icon}
