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Line 90: − + − Natural insecticides include cedar oil, food-grade [[Diatomaceous earth]] as well as slica and quartz. The latter three can slowly work to control or kill bedbugs by cutting them as they travel, resulting in their death by dehydration. However, diatomaceous earth is less effective at higher humidities, and the source of the diatomaceous earth can be a deciding factor in its effectiveness.<ref>http://newyorkvsbedbugs.org/2010/01/11/australian-de-trial</ref>+ − An additional insecticide is hydroprene, which does not actually kill bedbugs, but instead it works to prevent reproduction by disrupting the development of immature bedbugs, resulting in being unable to reproduce. This process takes longer but it can ensure an eventual end of the infestation, if contact with all bedbugs is made, but usually this chemical is used in conjunction with other insecticides.<ref>http://www.bed-bug.org/insectisides-for-bed-bugs/</ref><ref>http://www.zoecon.com/pdfs/GentrolBedBug.pdf</ref> + − +
→Control and eradication: DE effetiveness
===Insecticides===
===Insecticides===
[[Insecticide]]s known to kill bedbugs include [[deltamethrin]], a synthetic pyrethrin, one of many pyrethroids. Other chemicals include benseneacatate, chlorfenapyr, chlorpyrifos, cyfluthrin, esfenvalerate, fencalerate, lambda-cyhalothrin, permethrin, phenothrin, propoxur and resmethrin, not all of which are EPA approved. <ref>[http://www.bedbugbattleplan.com/content/view/42/33/ Bed Bug Insecticides]</ref> Isopropyl (rubbing) alcohol also works as a contact killer, as do most insecticides while others also provide some degree of residual effectiveness. Insecticides are classified according to their application method: Crease and Crevice, Indoor Surface, Indoor Space, and Fumigation.<ref>http://www.bed-bug.org/insectisides-for-bed-bugs/</ref> An additional factor is whether an insecticide repels bedbugs, causing migration if not killed, or not.
[[Insecticide]]s known to kill bedbugs include [[deltamethrin]], a synthetic pyrethrin, one of many pyrethroids. Other chemicals include benseneacatate, chlorfenapyr, chlorpyrifos, cyfluthrin, esfenvalerate, fencalerate, lambda-cyhalothrin, permethrin, phenothrin, propoxur and resmethrin, not all of which are EPA approved. <ref>[http://www.bedbugbattleplan.com/content/view/42/33/ Bed Bug Insecticides]</ref> Isopropyl (rubbing) alcohol also works as a contact killer, as do most insecticides while others also provide some degree of residual effectiveness. Insecticides are classified according to their application method: Crease and Crevice, Indoor Surface, Indoor Space, and Fumigation.<ref>http://www.bed-bug.org/insectisides-for-bed-bugs/</ref> An additional factor is whether an insecticide repels bedbugs (causing migration if not killed), or not.
An additional insecticide is hydroprene, which does not actually kill bedbugs, but instead it works to prevent reproduction by disrupting the development of immature bedbugs, resulting in being unable to reproduce. This process takes longer but it can ensure an eventual end of the infestation, if contact with all bedbugs is made, but usually this chemical is used in conjunction with other insecticides.<ref>http://www.bed-bug.org/insectisides-for-bed-bugs/</ref><ref>http://www.zoecon.com/pdfs/GentrolBedBug.pdf</ref>
Natural insecticides include orange oil, cedar oil, freshwater food-grade [[Diatomaceous earth]] as well as slica and quartz. The latter three, rightly applied, can slowly work to control or kill bedbugs by cutting them as they travel, often resulting in their death by dehydration. However, lower humidity is recommended for using diatomaceous earth, and the manner of application as well as the source of diatomaceous earth can be a deciding factor in how well it works, and more research is needed to establish its effectiveness.<ref>http://newyorkvsbedbugs.org/2010/01/11/australian-de-trial</ref> One study showed increased of silica aerogel (a synthetic desiccant dust) when combined with a blend of bed bug alarm [[pheromones.]]<ref>[http://www.bioone.org/doi/abs/10.1603/033.046.0323 Journal of Medical Entomology, Addition of Alarm Pheromone Components Improves the Effectiveness of Desiccant Dusts Against Cimex lectularius]</ref>
Repeat treatments with any legal insecticide are advised and are almost always necessary. Inhalation of all insecticides is to be avoided. Spot treatment of bedbugs with chemical formulations can make matters worse by allowing them to disperse and or develop resistance to the insecticide used.
Repeat treatments with any insecticide are advised and are almost always necessary. Inhalation of all insecticides is to be avoided. Spot treatment of bedbugs with chemical formulations can make matters worse by allowing them to disperse and or develop resistance to the insecticide used. Fogging is not advised, as besides the health risk to humans, they are considered to be less effective, and most contain pyrethroids, which has an associated excitatory flushing effect and by spraying into a space rather than harbourage, bugs are likely to disperse and can spread an infestation.<ref>[http://bedbugger.com/2007/05/30/bombs-dont-work-on-bed-bugs-citation-anyone/ Bombs and foggers don’t work on bed bugs and can make them worse]</ref>
Studies indicate that resistance to many of the chemical pesticides currently used is increasing in some bedbug populations in many areas of North America.<ref>http://newyorkvsbedbugs.org/2010/01/21/kdr-pyrethroid-resistance-widespread-in-u-s-bed-bug-populations/</ref><ref>http://www.faqs.org/periodicals/201006/2054573271.html</ref> This Resistance is genetically conferred to subsequent populations which then show resistance to other chemical tools within the same class of chemistry. Thus the problem involves all pyrethroids and is likely only to get worse.<ref>http://termidorpartners.com/store/Downloads/BASF-626-Bed-Bugs-Guide.pdf</ref> According to research at the University of Kentucky College of Agriculture, some of the latest “super bedbugs” can survive for up to 16 days after being directly sprayed with currently used pesticides designed to kill insects immediately.
Studies indicate that resistance to many of the chemical pesticides currently used is increasing in some bedbug populations in many areas of North America.<ref>http://newyorkvsbedbugs.org/2010/01/21/kdr-pyrethroid-resistance-widespread-in-u-s-bed-bug-populations/</ref><ref>http://www.faqs.org/periodicals/201006/2054573271.html</ref> This Resistance is genetically conferred to subsequent populations which then show resistance to other chemical tools within the same class of chemistry. Thus the problem involves all pyrethroids and is likely only to get worse.<ref>http://termidorpartners.com/store/Downloads/BASF-626-Bed-Bugs-Guide.pdf</ref> According to research at the University of Kentucky College of Agriculture, some of the latest “super bedbugs” can survive for up to 16 days after being directly sprayed with currently used pesticides designed to kill insects immediately.