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Vol. 22, No. 2, 2002Pesticides and YouPage 11 Vol. 22, No. 2, 2002Pesticides and YouPage 11

Vol. 22, No. 2, 2002Pesticides and YouPage 11 - PDF document

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Vol. 22, No. 2, 2002Pesticides and YouPage 11 - PPT Presentation

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Vol. 22, No. 2, 2002Pesticides and YouPage 11 irst and foremost, letÕs get a couple of things straight.Mosquito management does NOT mean dousing your-self and your kin in your favorite DEET product andTo manage mosquitoes, you have to get rid of the situa-tions that are attracting them to yourproperty, and, if you detect any Poster designed and illustrated by Grant Jerding(www.grant jerding.com) for the Maryland Pesticide Net-work (www.mdpestnet.org). Page 12Pesticides and YouVol. 22, No. 2, 2002frankincense, cinnamon, geranium, eucalyptus, basil, rose-mary, cloves, peppermint, lemon balm (citronella), on-ions, feverfew, thyme, and marigold.Essential oils of the herbs listed above are also good re-pellents, though most are volatile organic compounds andwill bother someone who is sensitive to scents. To mixyour own essential oil repellent, add 10 drops of essentialoil to 2 tablespoons of vegetable oil, stir, and dab a fewdrops on your skin or clothing. Pregnant women shouldconsult their doctors before using essential oils.Neem oil, used as a mosquito repellent cream and composedof 2% crude neem oil is a highly effective repellent. In vari-ous studies, its protection against the sp. is greater than 75%.Avoid repellents containing DEET, which is quickly absorbedthrough the skin and has caused effects ranging from large blis-ters to brain damage in children, with three deaths in the last 40years tied to exposure. Studies have also found adverse effectsfrom DEET mixed with permethrin, an insecticide commonlyused for mosquito control, especially in spray programs. Thecombination of products caused the death of a large number ofbrain cells within the cerebral cortex, which controls musclesand movement, the hippocampal formation, which controlsmemory, learning and concentration, and the cerebellum, whichsynchronizes body movements. (For more information aboutDEET, see the ChemicalWATCH factsheet on pages 9-10.)Maintain window screens and doors, closing all opened doors.Remove or regularly drain all water-retaining objects, suchas tin cans, pet dishes, buckets, holes in trees, cloggedgutters and down spouts, old tires, birdbaths, trash canwith mosquito larvae eating fish.and fields; keep street gutters and catch basins free of de-bris and flowing properly; and enhance drainage or cre-Remove or treat sewage leaks and lagoons, which provideexcellent breeding conditions for certain species.Check ponds and sources of water for signs of mosquitolarvae.citronella candles and torches to control mosqui-toes in the immediate vicinity when there is no wind.propane gas that sends out a plume of carbon dioxide. Thecarbon dioxide attracts mosquitoes, which are then suckedin and killed. One magnet can control adult mosquitoes overan acre of land, though different levels of success have beenreported. For more information see www.mosquitomagnet.commosquito larvae-eating fishbe stocked in enclosed water so they will remain in the areain need of control. Only indigenous species should be used.as goldfish and koi for biological mosquito control in pondsand other water sources: they actually eat mosquito larvae;they are voracious surface feeders with upturned mouthsspecially designed to get mosquito larvae where they live;they prefer the cover and protection of shallow overgrownareas along the shore which are also the preferred environsof mosquito larvae; and, since they give birth to live young(they are in the guppy family), they donÕt need any specialsand or other substance for spawning. They are self-sustain-You can order mosquito fish through J.Reilly, 5000 Trenton Street, Metairie, LA 70006, 504-887-3666;Natural Pest Controls, 8864 Little Creek Drive, Orangevale,var. israelensis is one of the most popu-lar and most effective least-toxic biological controls. It is abacterial strain that, when sprayed into larval pools, is in-gested by feeding larvae and kills them. You can buy a productcalled Mosquito Dunksª at your local lawn and garden store,in hardware stores, and in some catalogs and on line from RealGoods, www.realgoods.com, 800-762-7365 and Peaceful Valley,www.groworganic.com, 888-784-1722. The dunks are safe forbirdbaths, rain barrels, ponds, ditches, tree holes, roof gut-ters, unused swimming pools Ñ anywhere water collects(vegetable based) are effective in kill-ing larvae in water and sinking egg rafts on the surface.They also can kill non-target organisms including somemosquito predators that breathe from the surface.programs for mosquito control.ResourcesLeast Toxic Control of Pests In the Home & Garden: A series ofpest control & chemical factsheets. Washington, DC.Floore, Tom. 2002. ÒMosquito Information.Ó American Mosquito Control Association.http://www.mosquito.org/mosquito.html.Olkowski, Helga, Daar, Shiela, and Olkowski, William. 1991. trol. Newtown, MA: The Taunton Press, Inc.Quarles, William. 1996. ÒBotanical Mosquito Repellents.Ó Common Sense Pest Control12(4): 12-19. Berkeley, CA. A BEYOND PESTlClDES FACT SHEET A BEYOND PESTlClDES FACT SHEET A BEYOND PESTlClDES FACT SHEET

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