Journal of essential oil research how to#
Journal of essential oil research series#

What do you say to them? How do you attempt to convince them that they should not do this without sounding like a вЂњrevenue houndвЂќ? This article will provide you with some background and six key talking points that will hopefully be useful to you and your teams. But now, with the cooler weather, your customers might be seeing fewer mosquitoes, so you are starting to get calls from folks who want to cancel their last mosquito service (or perhaps even the last two). Hopefully, your mosquito season service was successful and you had many happy customers. Summer days are fleeting by and there is even a slight chill in the air. To read the two papers in the journal Pesticide Biochemistry and Physiology, visit and. Source: Brian Wallheimer, Purdue University News For More Information The Purdue University AgSEED program, the Center for Urban and Industrial Pest Management and the Bilsland Dissertation Fellowship supported this research as a part of GaireвЂ™s dissertation. GondhalekarвЂ™s lab will continue researching potential formulations of essential oils with pyrethroid insecticides and test them in the lab and the field to maximize pest control. вЂњThe essential oil compounds were able to neutralize those enzymes, allowing the deltamethrin to do its job.вЂќ вЂњWhen we treated the resistant Knoxville bed bugs with different essential oils and tested for cytochrome P450, we found these enzymes were inhibited,вЂќ Gaire said. Instead, it killed more than 90 percent of the resistant bed bugs. Gaire and Gondhalekar combined a single dose of deltamethrin with a single dose of essential oil compounds that would be expected to kill 25 percent to 50 percent of the resistant bed bugs. The essential oil compounds, Gaire and Gondhalekar reported, bind to and deactivate that enzyme and allow deltamethrin to do its job on the bed bugвЂ™s nervous system. That repeated firing quickly uses up the bugвЂ™s energy and kills it.Д«ut resistant bed bugs possess multiple mechanisms to resist pyrethroids, including overactive levels of an enzyme called cytochrome P450, which degrades deltamethrin. Deltamethrin binds to those sodium channels and keeps them open so that neurons cannot stop firing. Gondhalekar said bugsвЂ™ nervous systems normally open and close sodium channels to pass signals through neurons. The research was reported in the journal Pesticide Biochemistry and Physiology, (Photo courtesy of Sudip Gaire) Purdue University researchers have uncovered mechanisms that make plant-based essential oils lethal for bed bugs, especially in combination with synthetics, offering new control options. A dose meant to kill 25 percent killed that many of each type, the press release said. The active ingredients in essential oils - thymol from thyme, carvacrol from oregano and thyme, eugenol from clove, and others - worked equally against resistant and non-resistant bugs. вЂњDeltamethrin is so ineffective in the Knoxville strain of bed bugs that if youвЂ™re using it in the field even in large doses, youвЂ™ll get almost no control,вЂќ Gaire said. A single dose of deltamethrin meant to kill 25 percent of bugs killed that many non-resistant bed bugs, but it took 70,000 times more to kill 25 percent of the Knoxville strain.

Journal of essential oil research series#

Gaire and Gondhalekar first tested the pyrethroid insecticide deltamethrin and a series of essential oil compounds on non-resistant bed bugs and a resistant Knoxville strain of bed bugs. вЂњOur findings show that essential oils can kill bed bugs, but the combination of essential oils and pyrethroid insecticides has a synergistic effect.вЂќ Applying them at those levels is a problem,вЂќ said Gondhalekar, a research associate professor in entomology. вЂњWeвЂ™ve seen that we can kill resistant bed bugs with traditional pyrethroid insecticides, but we have to use increasingly larger amounts. Their findings were published in two papers in the journal Pesticide Biochemistry and Physiology - one released last year and another out this past March. student, Sudip Gaire, have discovered how essential oil compounds act on bed bug physiology and have shown how they can improve the lethality of pyrethroids. Now, Purdue Entomologist Ameya Gondhalekar and his former Ph.D.

Journal of essential oil research how to#

Plant-based essential oils are generally lethal to bed bugs, but itвЂ™s been unclear how to use them most effectively, according to a recent Purdue University press release. That job has gotten even harder in recent years as some bed bugs have developed resistance to the insecticides long used to eradicate them from homes, hotel rooms and other spaces. Bed bugs tuck themselves away into dark, unseen spaces and multiply rapidly, making them difficult to control.