The larvae hang head down from their tail from the surface tension film of the water. Their breathing tube penetrates the film. A layer of oil clogs the tube. Death is by asphyxiation, not toxicity. Motor oil works, but takes a long time to break down. Vegetable oil costs more, but is less polluting.
James-Osbourne: Holmes -----Original Message----- From: Ode Coyote [mailto:[email protected]] Sent: Wednesday, June 19, 2002 6:54 AM To: [email protected] Subject: RE: CS>mosquito larvae Probably, rather than killing the larvae, an oil slick will coat an emerging mosquito and smother it and might also coat a mosquito that lands to lay eggs. ..add some heat...French fried frog food. ken At 10:01 AM 6/18/02 -0600, you wrote: >I don't know about the egg laying. I have seen larvae in ponds polluted >with partial mineral oil slicks, so I think it is probable they will lay the >eggs on/near oil films. The film need not be very thick to kill the larvae, >and probably will not harm your cats. Don't they put corn oil in dry cat >food? > >James-Osbourne: Holmes > >-----Original Message----- >From: Marshall Dudley [mailto:[email protected]] >Sent: Tuesday, June 18, 2002 9:09 AM >To: [email protected] >Subject: Re: CS>mosquito larvae > >Although true, I don't want to add that to my cat's drinking water. > >Do the adults still try to lay their eggs if there is oil on the water. I >figure that they are going to lay them somewhere, so it would be better to >have something for them to lay them in, where the larvae will die. > >I guess one of the best ways would be to have a tub of water with some >minnows in it. > >Marshall > >"James Osbourne, Holmes" wrote: > >> Any cheap cooking oil on the surface will clog their breathing apparatus. >> >> James-Osbourne: Holmes >> >> -----Original Message----- >> From: Marshall Dudley [mailto:[email protected]] >> Sent: Monday, June 17, 2002 12:21 PM >> To: [email protected] >> Subject: CS>mosquito larvae >> >> Being summer with lots of areas where water accumulates where mosquito >> larvae can hatch, I though I would try using CS and aspertame to see if >> it would kill them. >> >> Last night I added a couple of ounces of 5 ppm CS to a bowl of water >> that had about 8 oz of water in it. It had larvae in it already. >> >> This morning I checked and the larvae were still alive. I then added a >> packet of Nutrasweet. >> >> 4 hours later, they are still alive. I just dumped them out to dry. >> >> Oh well, nice idea if it had worked. >> >> Marshall >> >> -- >> The silver-list is a moderated forum for discussion of colloidal silver. >> >> Instructions for unsubscribing may be found at: http://silverlist.org >> >> To post, address your message to: [email protected] >> >> Silver-list archive: http://escribe.com/health/thesilverlist/index.html >> >> List maintainer: Mike Devour <[email protected]> > >
