How does eugenol oil kill bugs

This miracle product is fast becoming the talk of forums and soon to supplant bed bugs as the 1 question on my Ask The Bug Doctor feature of this website. You can often see the star of the show sprit-zing Eugenol oil from a nondescript bottle and he often explains its virtues. The intranet is filled with references and websites that tout its goodness for the environment because of its natural ingredients.

I mean who can argue with cloves mixed with water right? As is so often the case with this or any product there are downfalls or hidden side effects but for some reason very few people wish to speak up when it involves a environmentally safe product.

What is it and where is it used? Eugenol oil is clove oil which is made up of the extract of dried flower buds, leaves and stems of the tree Syzygium aromaticum Eastern Hemisphere or Eugenia caryophyllata and Eugenia aromaticum Western.

So far so good. It is listed as a Minimum Risk by the FDA and is used for the purposes of food flavoring, cosmetic, dermal drug delivery, dental, aromatic, soaps detergents and many other well known things. It is also well known for its ability to kill weeds and even bugs. Eugenol is great for breaking down waxy coatings and fast absorption so plants treated dry out quickly and pests with their waxy outer coating also succumb to its effects when sufficient amounts are used. The residual of clove oil is short lived so its non persistent nature makes it ideal for many applications.

Clove oil is toxic to human cells , if ingested in sufficient quantity or injected it has been shown to cause life-threatening complications, including Acute Respiratory Distress Syndrome, Fulminant Hepatic Liver Failure, and Central Nervous System Depression. The lethal oral dose is 3. Bioactivities of methyl allyl disulfide and diallyl trisulfide from essential oil of garlic to two species of stored-product pests, Sitophilus zeamais Coleoptera: Curculionidae and Tribolium castaneum Coleoptera: Tenebrionidae.

The fumigation and contact effects of essential oils and their chemical constituents are still little studied with respect to the immature stages of S. Plant products as fumigants for stored-product insect control. Immediately after treatment application on the populations of A. After 5 min, the insects tried to escape through the surface of the dish.

This behavior was probably favored by the effects of fumigation and contact of clove essential oil. According to El-Nahal et al. Vapour of Acorus calamus oil a space treatment for stored-product insects. Effect of Acorus calamus L. Araceae essential oil vapours from various origins on Callosobruchus phaseoli Gyllenhal Coleoptera: Bruchidae. Acoraceae essential oil in the form of vapor, observed that the highest mortality of Callosobruchus phaseoli Gyllenhal, Coleoptera: Chrysomelidae was related to the increase in the period of exposure to the oil.

Campos et al. Smaniotto et al. Bioatividade da Cabralea canjerana Vell. Revista Biotemas, v. Meliaceae on A. The fractions of ethyl acetate, chloroform and essential oil showed the lowest efficiencies in the control of this insect. Some essential oils cause mortality, repellence, growth effects and reductions in oviposition and emergence. In another study, Savaris et al. Evaluation of extracts and essential oil from Cunila angustifolia Lamiales: Lamiaceae leaves to control adults of maize weevil, Sitophilus zeamais Coleoptera: Curculionidae.

International Journal of Entomological Research, v. This was also observed in a study conducted by Savaris et al. A similar study was performed by Prado et al. Alphitobius diaperinus Coleoptera: Tenebrionidae Susceptibility to Cunila angustifolia essential oil. Journal of Medical Entomology, v. Afonso et al. In another study, Ho et al. In addition, in other studies Nerio et al.

However, for the application of the essential oil, it is necessary to develop technologies that allow greater permanence of the compounds close to the mass of grains, increasing control efficiency and grain preservation. The obtained LC 50 results confirmed the hypothesis that there are differences in the response to the composition of the clove essential oil used in this study between the different species.

According to Table 3 , the LC 50 to control the population of A. The lower susceptibility of S. Insecticide resistance and synergism in Brazilian populations of Sitophilus zeamais Coleoptera: Curculionidae.

Partial characterization of glutathione Stransferases in pyrethroid resistant and susceptible populations of the maize weevil, Sitophilus zeamais.

Estrela et al. Piperaceae were also toxic to adults of S. Fumigant toxicity of Eucalyptus intertexta, Eucalyptus sargentii and Eucalyptus camaldulensis against stored product beetles. Journal of Applied Entomology, v. In the present study, the concentrations of In this context, the results obtained in the present study show the possibility of use of essential oils, such as clove oil, as alternatives for the management of S.

Other eugenol sources, such as clove basil Ocimum gratissimum L. Eugenol is the compound responsible for the insecticide action of clove essential oil, applied for the control of S. Clove essential oil is an efficient alternative method for the control of S. Abrir menu Brasil. Abrir menu. Carlos F. E-mail: jairoce09 gmail. Pelotas, RS. E-mail: crisakst yahoo. E-mail: camilafpnunes gmail. E-mail: flaviormg hotmail. Key words: control strategies; insect infestations; grain storage.

Introduction Many internal and external factors can compromise qualitative and quantitative characteristics of stored grains even after drying.

Figure 1 Chromatogram of the eugenol sample. Table 1 Percentage of components in the essential oil of clove Syzygium aromaticum dried flower buds as a function of the retention time, performed through gas chromatography.

Literature Cited Abbott, W. Afonso, R. Antunes, L. It took about 70, times more of the most effective compound to kill a bed bug by contact than a control synthetic insecticide. With fumigants, this difference was only times. Now that toxicity levels are known, effective products can be formulated.

Gondhalekar and Gaire also found that thymol, carvacrol and eugenol depressed the bed bug nervous system, whereas linalool caused excitation. Writer: Brian Wallheimer, , bwallhei purdue. Source: Ameya Gondhalekar, , agondhal purdue. Toxicity and neurophysiological impacts of plant essential oil components on bed bugs Cimicidae: Hemiptera. Sudip Gaire, Michael E. Bed bugs Cimex lectularius L. Integrated pest management IPM approaches, which include the use of essential oil-based insecticidal compounds, have been proposed for their control.

This study aimed to define insecticidal activity and neurophysiological impacts of plant essential oil constituents.