Repellent properties of the host compound 4
PubMed:Repellent properties of the host compound 4-allylanisole to the southern pine beetle.PubMed Photoisomerization of antiaggregation pheromone verbenone Biological and practical implications with respect to the mountain pine beetle,Dendroctonus ponderosae Hopkins (Coleoptera Scolytidae).Why cats are crazy for catnip Science AAASJan 20,2021 Repellent properties of the host compound 4#0183;Why cats are crazy for catnip.By Sofia Moutinho Jan.20,2021 ,2:00 PM.Cat owners flood the internet with videos of their kitties euphorically rolling and flipping out over catnip-filled bags Whats a Beautyberry? 10 Intriguing Benefits Uses 8.Natural ant repellent.The same compounds seem to work against fire ants and other arthropod insects.In fact it works so well,one group filed a patent on using it for that very purpose.They eventually abandoned it,as pursuing a patent of a naturally occurring compound is hard to do (however the extraction process of such might be
US2254665A US293522A US29352239A US2254665A US 2254665 A US2254665 A US 2254665A US 293522 A US293522 A US 293522A US 29352239 A US29352239 A US 29352239A US 2254665 A US2254665 A US 2254665A Authority US United States Prior art keywords repellent alcohols alcohol flies insects Prior art date 1939-09-05 Legal status (TheTick Repellent Substances in the Essential Oil of Jan 01,2008 Repellent properties of the host compound 4#0183;Among the compounds tested,4-terpineol,1--terpineol,and the mix of - and -thujone elicited the strongest repellent effect and are as such,candidates to be included in an effective repellent blend.1,8-Cineol were present in substantial amounts in the crude oils and is a good candidate,but too volatile to be used in a long-lasting formulation.In the crude oils andTick Repellent Substances in the Essential Oil of In this study,we present results from both behavioral and chemical investigations on the tick-repellent properties of this plant.The aim has been to investigate the repellent activity of the oils,fractions of the oils,and single compounds related to flower heads of T.vulgare against host-seeking nymphs of I.ricinus.
The active compounds in the plant which act as antifeedants are alpha-pinene,limonene,and borneol.Borneol is also a component of many essential oils and is a natural insect repellent.The compound alpha-terpineol is also responsible for the insecticidal and pesticidal properties of the plant (Duke 2000).The Chemistry of Insect Repellents Compound InterestJul 14,2014 Repellent properties of the host compound 4#0183;The only natural compound that is approved in the EU for sale as an insect repellent is citriodiol,or the essential oil of the lemon eucalyptus tree.Overall,studies seem to show that this compound provides slightly shorter protection than DEET,but as well as acting as a repellent,it can also act as a miticide and kill mites and some insects.Terpenes Natural Products for Controlling Insects of The obtained model was statistically significant (),and it predicted KT 50 (min 3) based on four molecular properties,namely,boiling point (BP),polar surface area (PSA),molar volume (MV),and hydrogen bond acceptor (HBA) A second QSAR analysis was performed in order to include the terpene hydrocarbons limonene, -pinene, -pinene,myrcene,and -terpinene
Compounds with tick (Ixodes ricinus) repellent properties were isolated from sulfate turpentine consisting of Norway spruce (80%) and Scots pine (20%) from southern Sweden.The turpentine was divided into two fractions by distillation under reduced pressure resulting in one monoterpene hydrocarbon fraction and a residual containing higher boiling terpenoids.Some results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextSome results are removed in response to a notice of local law requirement.For more information,please see here.12345NextRepellent properties of natural substances against Repellent properties of natural substances against Dermanyssus gallinae review of knowledge and prospects for Integrated Pest Management.The poultry red mite Dermanyssus gallinae is a strict hematophagous parasite of birds,causing major health and economic problems in poultry farms worldwide.The use of plant-derived repellents against this
Jul 05,2019 Repellent properties of the host compound 4#0183;Background.A blend of compounds (pentanoic acid,guaiacol,-octalactone and geranylacetone) identified in waterbuck (Kobus defassa) body odour referred to as waterbuck repellent compounds (WRC) and a synthetic repellent 4-methylguaiacol have previously been shown to repel tsetse flies from the morsitans group.However,these repellents have not beenRepellent,Irritant and Toxic Effects of 20 Plant Extracts Dec 23,2013 Repellent properties of the host compound 4#0183;The need to find additional compounds,either to kill disease-carrying mosquitoes or to prevent mosquito contact with humans,therefore arises.In laboratory conditions,the effects (i.e.,repellent,irritant and toxic) of 20 plant extracts,mainly essential oils,were assessed on adults of Anopheles gambiae,a primary vector of malaria.Repellent properties of the host compound 4-allylanisole Abstract.The phenylpropanoid 4-allylanisole is a compound produced by loblolly pines (Pinus taeda L.),an abundant species in southern pine forests and a preferred host of southern pine beetle (Dendroctonus frontalis Zimmermann).Repellency of individual beetles was demonstrated in laboratory behavioral assays ofD.frontalis and other scolytids..Inhibition was demonstrated
biologically active compound(s) within the extract.Conclusion Attempts were made to isolate the repellent compound from the acetone extract of R.glabrum.The process produced very good results up to a late stage in the bioassay-guided fractionation process.At that point,the repellent activity was lost.Repellent properties of Rotheca glabrum plant extracts Apr 27,2019 Repellent properties of the host compound 4#0183;Unfortunately,the activity decreased after 2.5 h,probably due to volatility of the biologically active compound(s) within the extract.Attempts were made to isolate the repellent compound from the acetone extract of R.glabrum.The process produced very good results up to a late stage in the bioassay-guided fractionation process.Repellent activity of essential oils a reviewIndividual compounds present in these mixtures with high repellent activity include alpha-pinene,limonene,citronellol,citronellal,camphor and thymol.Finally,although from an economical point of view synthetic chemicals are still more frequently used as repellents than essential oils,these natural products have the potential to provide
Jan 01,2010 Repellent properties of the host compound 4#0183;Although repellent properties of several EO regularly appear to be associated with the presence of monoterpenoids and sesquiterpenes (Kiran and Devi,2007; Jaenson et al.,2006,Sukumar et al.,1991),other authors (Odalo et al.,2005) have found that phytol,a linear diterpene alcohol,has high repellent activity against Anopheles gambiae.Repellent Properties of -Octalactone Against the Tsetse From the volatiles of the waterbuck,-octalactone was characterized among other EAG active compounds (Gikonyo et al,2002).Bioassay of a blend of all volatile components that differentiated the waterbuck from the ox and buffalo (-octalactone included) showed repellent properties against G.m.Repellent Properties of -Octalactone Against the Tsetse From the volatiles of the waterbuck,-octalactone was characterized among other EAG active compounds (Gikonyo et al,2002).Bioassay of a blend of all volatile components that differentiated the waterbuck from the ox and buffalo (-octalactone included) showed repellent properties against G.m.
Feb 26,2021 Repellent properties of the host compound 4#0183;The repellent properties of these extracts could also be attributed to specific compounds among the many that GC-MS analysis revealed in this study.However,synergistic or additive effects as a result of combination and interaction between phytochemicals cannot beRepellent Activity of Fractioned Compounds from Sep 01,2006 Repellent properties of the host compound 4#0183;All compounds were evaluated for repellent activity by using a laboratory in vitro vertical bioassay with host-associated attractant stimuli (the open end of vials was breathed upon and covered with a human hand),exploiting this tick's natural behavior of questing against gravity.Primary screening and application of repellent plant 2.2.2 Cage trials.Based on results of the straight tube trials,three repellent compounds (DMDS,allyl methyl sulfide and 1,8cineole) were mixed at a 1:1:1 ratio (v/v/v) and dissolved in ethanol to formulate blend1 (Table 1).Because allyl methyl sulfide is expensive,we formulated three other blends with it was omitted (blend2) or replaced (blend3 and blend4) with the high
The Insect Repellents Handbook notes that oil of thyme is a 100 percent-effective repellent against anopheles quadrimaculatus-- a species of mosquito that carries malaria -- for as long as 30 minutes when applied to clothing.Because it contains the same repellent compounds,oil of oregano may well be equally effective,although few sources spell this out.Novel repellents for the blood-sucking insects Rhodnius Mar 18,2020 Repellent properties of the host compound 4#0183;Studying the behavioral response of blood-sucking disease-vector insects to potentially repellent volatile compounds could shed light on the development of new control strategies.Volatiles released by human facial skin microbiota play different roles in the host-seeking behavior of triatomines.We assessed the repellency effect of such compounds ofNatural Fly Repellents That Actually Work - LawnstarterAug 05,2019 Repellent properties of the host compound 4#0183;Instead of repelling flies,some repellent recipes attract them.Sugar-sweet flytraps.Take a Mason jar or other small glass jar or bottle and add about 1/4 cup of sugar,3 inches of apple cider vinegar,1/2 cup of water,and a drop of dish soap.Secure a piece of plastic wrap over the top and poke holes in it.
Acaricidal and repellent activity of terpenoids Natural Product Communications Vol.7 (4) 2012 465 Figure 3 Concentration-mortality curves for the oils of red (HLD) and brown (DCC) seaweed extracts and eugenol towards Tetranychus urticae approximately tenfold more repellent than the seaweed extracts,Mosquito Repellent Plants 7 Plants That RepelWhilst not specifically a mosquito repellent plant,pyrethrum helps to repel a whole host of other insects and bugs,including aphids,leafhoppers,spider mites,harlequin bugs and ticks.Pyrethrum is best used as a companion plant to protect other plants with its insect repellent properties.Modulation of the behavioral and electrical responses to An insect repellent has been defined as a chemical substance that produces oriented movements of the insects away from its source (Dethier,Browne Smith,1960; Barton Browne,1977).N,N-diethyl-3-methylbenzamide (DEET) is an insect repellent used worldwide.The repellent properties of DEET were discovered in 1946.Ten years later,
Hayes et al,Identification of a Host Compound and its Practical Applications 4-Allylanisole as a Bark Beetle Repellent,Chemical Abstracts Service,1994,Feb.1-2,1994,pp.69-79.Healy et al.,Activation of Anopheles Gambiae Mosquitoes by Carbon Dioxide and Human Breath,Medical Veterinary Entomology,vol.9,1995,pp.331-336.Limitation of using synthetic human odours to test It is known that certain compounds such as aliphatic carboxylic acids and deet may have both repellent and attractant properties and can express these properties at different concentrations and distances from source [9,16].Deet was described by Dogan et al as an inhibitor in the presence of a host but an attractant in the absence of host LABORATORY ASSESSMENT OF THE REPELLENT1 Int.J.Sustain.Crop Prod.4(2):15(MAR 2009) LABORATORY ASSESSMENT OF THE REPELLENT PROPERTIES OF ETHANOLIC EXTRACTS OF FOUR PLANTS AGAINST Raphidopalpa foveicollis Lucas (COLEOPTERA CHRYSOMELIDAE) PANKAJ TANDON1 and ANITA SIROHI1 1Department of Zoology,D.AV Degree College,Civil Lines,Kanpur 208001
May 03,2018 Repellent properties of the host compound 4#0183;To analyze the bee-repellent abilities of the fabric samples,12 different measurement cabinets made of pine tree and glass were produced.According to the results,lavender and fennel oils can be used as bee-repellent alternatives to DEET in beekeeping.Insecticidal activity of garlic essential oil and their Apr 20,2017 Repellent properties of the host compound 4#0183;Garlic essential oil composition.A total of 14 compounds from the garlic essential oil were obtained,10 compounds were identified and 4Insect-Repellent and Mosquitocidal Effects of Out of our library of compounds synthesized based on the noreremophilanes and nardoaristolone B scaffolds,NDS-100598 (compound 20) exhibits higher repellent and knock-down effects at a very low concentration (0.25 mg/cm 2),while a few analogues showed considerably enhanced activity compared to racemic nootkatone.This is the first report
Typically,insect repellents are a compound or composition that can be either topically applied to the host; or,the compound or composition is incorporated into an insect susceptible article to produce an insect repellent article that deters insects from the nearby 3-dimensional space in which the host or article exists.Icaridin C12H23NO3 - PubChemIcaridin,also known as Picaridin or hydroxy-ethyl isobutyl piperidine carboxylate,is a cyclic amine and a member of the piperidine chemical family.Piperidines are structural components of ,which is a plant extract from the genus Piper ,or pepper.Icaridin has been commonly used as a topically-applied insect repellent in various countries but was officially licensed for use in theGUIDELINES FOR EFFICACY TESTING OF SPATIAL4 A flow-chart of the decision-making process for laboratory studies of a candidate spatial repellent product is shown in Figure 1.Figure 1.Flow chart for makingdecisions on the basis of laboratory studies of candidate spatial repellent technical material .Ideally,tests should be conducted with three or more local
Many fungal species produce low molecular weight volatile organic compounds (VOCs) with insect behavior modifying properties.20 Some compounds clearly possess pesticidal or repellent properties.21-23 Most notable are 1octen3ol,3octanone and 1octene,which are produced by a wide range of fungi including saprophytic molds Formulations containing insect repellent compounds - JustiaJun 09,2014 Repellent properties of the host compound 4#0183;Dihydronepetalactone,a minor natural constituent of the essential oil of catmints (Nepeta spp.) such as Nepeta cataria,has been identified as an effective insect repellent compound.Synthesis of dihydronepetalactone may be achieved by hydrogenation of nepetalactone,the major constituent of catmint essential oils.This compound,and compositions thereof,which also has fragrance properties Formulation of Natural Mosquito Repellentingredient in mosquito repellent formulations.The insecticidal properties of this oil were discovered in 1901,and it was used for a time as a hair dressing for the control of fleas and lice.Despite popular conception,citronella candles or incense were ineffective for reducing the biting pressure of mosquitoes.
Use of nonpesticidal chemicals to minimize or eliminate horn fly (Haematobia irritans) populations on cattle could be helpful in combating insecticide resistance.One recent approach is the use of natural products with repellent properties against the target pest.A rapid on-animal evaluation system that accounts for both host and pest interactions and bypasses the need for costlyConservation of Olfactory Avoidance in Drosophila Species Jun 22,2015 Repellent properties of the host compound 4#0183;Test compound (0.4 ml) is painted on blueberries in test bowl and solvent (0.4 ml) on blueberries in control bowl.Bowls are placed at opposite ends of aComparative Efficacy of Insect Repellents againstThe complete-protection times of DEET-based repellents correlated positively with the concentration of DEET in the repellent.The formulation containing 4.75 percent DEET provided an average of 88
Cited by 96Publish Year 1994Author Jane Leslie Hayes,Brian L.Strom,Larry M.Roton,Leonard L.IngramRepellent properties of the host compound 4-allylanisole
The phenylpropanoid 4-allylanisole is a compound produced by loblolly pines (Pinus taeda L.),an abundant species in southern pine forests and a preferred host of southern pine beetle (Dendroctonus frontalis Zimmermann).Repellency of individual beetles was demonstrated in laboratory behavioral assays of D.frontalis and other scolytids.Inhibition wasCited by 96Publish Year 1994Author Jane Leslie Hayes,Brian L.Strom,Larry M.Roton,Leonard L.Ingram4-Allylanisole Targetmol - Compound LibrariesCatalog No.T5649 CAS 140-67-0.Synonyms Estragole,p-Allylanisole,Methyl chavicol.Purity 98.00% Datasheet.4-Allylanisole is found in allspiceand is a constituent of many essential oils.4-Allylanisole is a flavouring agent.4-Allylanisole,CAS 140-67-0.Cited by 1073Publish Year 2010Author Luz Stella Nerio,Jesus Olivero-Verbel,Jesus Olivero-Verbel,Elena StashenkoFormulations Development of Herbal Mosquito RepellentUnited States government had screened over 20,000 potential mosquito repellent compounds.In 1953,the mosquito and other insect repellent properties of N,N-diethyl-3-toluamide (DEET) were discovered and the first DEET product was introduced in 1956.DEET spray is still the most widely used mosquito repellent.It has generally been regarded as
Jul 21,2016 Repellent properties of the host compound 4#0183;In the headspace volatile collection from the non-host,chicken,11 GC-EAD active compounds were detected (Table 2).Of these,limonene,-myrcene,nonanal,sulcatone and cis-limonene oxide were also found within volatile collections of one or more of the non-human hosts.The remaining compounds,hexadecane,naphthalene,isobutyl butanoate and transChicken volatiles repel host-seeking malaria mosquitoes Jul 21,2016 Repellent properties of the host compound 4#0183;In the headspace volatile collection from the non-host,chicken,11 GC-EAD active compounds were detected (Table 2).Of these,limonene,-myrcene,nonanal,sulcatone and cis-limonene oxide were also found within volatile collections of one or more of the non-human hosts.The remaining compounds,hexadecane,naphthalene,isobutyl butanoate and transChemical Composition,Antifeedant,Repellent,and Toxicity Repellent activity of the identified active compound,1,8-cineol was obtained using the method adopted by Ramamurthy et al.(2012).Ten cm diameter petri dish was used for repellency test.Nine centimeter filter paper was divided into two halves with each half treated and another half was untreated (control).
The major cements composition and properties Portland cement Chemical composition.Portland cement is made up of four main compounds tricalcium silicate (3CaO SiO 2),dicalcium silicate (2CaO SiO 2),tricalcium aluminate (3CaO Al 2 O 3),and a tetra-calcium aluminoferrite (4CaO Al 2 O 3 Fe 2 O 3).In an abbreviated notation differing from the normal atomic symbols,these compounds Behavioral Responses of the Common Bed Bug toFeb 21,2021 Repellent properties of the host compound 4#0183;on human health .Alternative compounds that have demonstrated repellent activity against bed bugs include 3-methyl-5-hexyl-2-cyclohexenone,propyl dihydrojasmonate,and -methyl tridecalactone .Natural insecticides,especially plant essential oils,have been used extensively to interrupt host seeking of blood-feeding insects [17,19,20].Advanced insect repellent agents for protective textiles Jan 01,2020 Repellent properties of the host compound 4#0183;A repellent applied to fabric retains its effect longer and better than on skin due to following reasons no loss due to skin absorption,no removal of the active compound by sweating,slower evaporation because of lower temperature,except when clothing is exposed to sunlight,better adherence to cotton and synthetic fibers.
Mar 24,2017 Repellent properties of the host compound 4#0183;Cannabis produces a variety compounds known as cannabinoids.Here we list the major ones,such as THC and CBD,and some of their potential effects.(PDF) The Mosquito Repellent Activity of the Active This compound has shown insecticidal (Zahran andAbdelgaleil 2011,Kaur et al.2019),acaricidal (Jeon et al.2009,Chen et al.2019) and repellent (M uller et al.2008,Sfara et al.2009 (PDF) Plant essential oils as mosquito repellent - a reviewThe commercially marketed repellents basically consist of essential oils from plants Cymbopogon nardus,Eucalyptus maculata,Cymbopogon excavatus,Mentha piperita,Azadirachta indica.
Of the repellent compounds identified,terpinen 4 ol was the most active and was as effective as dimethyl phthalate (positive control).Test Animals A.Aedes aegypti A small and dark mosquito with white lyre shaped markings and banded legs.
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