Welcome to CLEACE GROUP

Frontiers | Odorant-Binding Proteins Contribute to the ...- articles of evaluation parameter of mosquito repellent liquid products for adults ,The function of odorant-binding proteins (OBPs) in insect chemodetection has been extensively studied. However, the role of OBPs in the defense of insects against exogenous toxic substances remains elusive. The red flour beetle, Tribolium castaneum, a major pest of stored grains, causes serious economic losses for the agricultural grain and food processing industries.Evaluation of the Mosquito Repellent Activity of Nano ...Nov 30, 2017·The mosquitoes of Culicidae family are serious vectors of several tropical diseases, such as malaria, filariasis, encephalitis, and nuisance. Control of mosquitoes and protection of people from their bites are of the most important ways to prevent transmitted diseases. Although the efficacy of N, N-diethyl-m-toluamide (DEET) is high and generally used …



The behavioral response of Lasioderma serricorne ...

Jun 21, 2016·The behavioral response of Lasioderma serricorne adults to citronellal, citral, and rutin was investigated by using the area preference method. The L. serricorne adults were exposed to citronellal, and citral at the rate of 1:10, 1:50, 1:100 and 1:1000 (citronellal: ethanol, v/v) for 1, 2, 12 and 24 h, to rutin at the rate of 10, 30 and 90 g/m2 for 1, 2, 12 and 24 h, …

WhatsAppContact Us

Toxicology and Safety Evaluation of the New Insect ...

Jan 01, 2010·101.2.2. Mode of Action. In general, repellent activity is thought to be the result of any number of physiological and biochemical events. Mosquito repellency is thought to be due to blocking of the lactic acid receptors resulting in “losing” the host (Peterson and Coats, 2001).Electrophysiological studies on the insects' olfactory receptor organs reveal that certain …

WhatsAppContact Us

The characteristic response of domestic cats to plant ...

Although we only tested for a repellent effect on A. albopictus in this study, we might also expect nepetalactol to be repellent to other mosquito species including A. aegypti, which is a common vector of yellow fever, dengue, and Zika viruses , consistent with the broad repellence of nepetalactone across a range of mosquito and other biting ...

WhatsAppContact Us

(PDF) Vitex negundo: Medicinal Values, Biological ...

Isolation of a potent mosquito repellent from Vitex negundo L. Natural Product Sciences 1999; 5(2):104-106. 84) Singh P. Mishra G, Garg VK, et al. Anti-inflammatory

WhatsAppContact Us

A promising azeotrope-like mosquito repellent blend ...

Aug 31, 2017·Topical repellents play a key role in reducing the outdoor transmission of mosquito-borne diseases by reducing human-vector contact. Excellent repellents are available, but there is always room ...

WhatsAppContact Us

ACS Omega | Vol 6, No 46

Nov 23, 2021·According to SIA, the surface fractal dimensions of four types of reservoir space (DDP, DOP, DIP, and DMF) decrease progressively, and their main body is 2.60–2.80, 2.40–2.65, 2.20–2.40, and 2.05–2.30. Organic pores and intergranular pores are the most abundant, and so D1 is mainly related to DOP and DIP.

WhatsAppContact Us

Efficacy of biopesticides against the whitefly, Bemisia ...

Jan 18, 2021·The liquid formulations of Neem Baan at 10 and 15 ml/l were the most effective (90.7 to 93.3% in eggs, 93.3 to 97.1% in nymphs, and 92.4 to 94.2% reduction in whitefly adults after 3rd spray, respectively) as compared to EPF.

WhatsAppContact Us

Insects Killing Sprays: Top products to keep bugs out of ...

Apr 30, 2020·Nutree Pure offers the Bugaway herbal mosquito repellent oil spray that is ideal for kids and adults and is available in a 100ml quantity. This product is 100% herbal with no chemicals, non-toxic ...

WhatsAppContact Us

Chemical composition and larvicidal activities of Azolla ...

Nov 06, 2018·Background The resistance problem of dengue vectors to different classes of insecticides that are used for public health has raised concerns about vector control programmes. Hence, the discovery of alternative compounds that would enhance existing tools is important for overcoming the resistance problem of using insecticides in vectors and ensuring a chemical …

WhatsAppContact Us

DEVELOPMENT OF MOSQUITO REPELLENT …

The formula for the insect repellent cream is as follows: Essential oil 5%or 7. 5% Cetyl alcohol 2% Lanolin 1% Mineral oil 2% Stearic acid 15% Glycerin 10% Pot. Hydroxide 1% Water Q.S. 100% EVALUATION OF MOSQUITO REPELLENT ACTIVITY Mosquito repellent activity was assessed by using the test cage as described in the American

WhatsAppContact Us

Thrips palmi (melon thrips) - CABI

Adults The structure of the mouthparts of adult females of T. palmi has been examined by Yasumi et al. (1994); the morphology of mouthparts, and the feeding marks on injured leaves indicate that T. palmi is a sap feeder. Female Colour pale yellow, except antennal segment III usually dark at apex, IV and V usually dark with base pale, VI and VII dark; forewings pale.

WhatsAppContact Us

Systems and methods to deliver and maintain volatile ...

Mar 14, 2013·Repellents can be used as either topical repellents or spatial repellents. Spatial repellents can be defined as repellents which are dispensed into the atmosphere of a three dimensional space and inhibit the ability of mosquitoes to locate and track a target such as humans or livestock (Nolen et al, U.S. No. 6,362,235).

WhatsAppContact Us

Evaluation and Use of Mosquito Repellents | JAMA | JAMA ...

Apr 18, 1966·Repellents applied to skin and clothing are of great importance in protecting human beings from mosquito attack. They are especially important when other methods of obtaining relief from annoying pests and mosquito vectors of various diseases are not feasible. Before World War II, repellent dopes gave very little protection from mosquito attack.

WhatsAppContact Us

Ethnopharmacological survey among migrants living in the ...

Oct 29, 2010·Understanding how people of diverse cultural backgrounds have traditionally used plants and animals as medicinal substances during displacements is one of the most important objectives of ethnopharmacological studies. An ethnopharmacological survey conducted among migrants living in the Southeast Atlantic Forest remnants (Diadema, São Paulo, Brazil) is …

WhatsAppContact Us

Developmental Neurotoxicity of Pyrethroid Insecticides ...

Pyrethroid insecticides have been used for more than 40 years and account for 25% of the worldwide insecticide market. Although their acute neurotoxicity to adults has been well characterized, information regarding the potential developmental neurotoxicity of this class of compounds is limited. There is a large age dependence to the acute toxicity of pyrethroids in …

WhatsAppContact Us

Urinary biomarkers of exposure to insecticides, herbicides ...

Nov 19, 2014·Pesticides such as the insect repellent N-N-diethyl-meta-toluamide (DEET), the herbicides 2,4-dichlorophenoxyacetic acid (2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T), and the metabolites of various pyrethroid insecticides (e.g., permethrin) have been measured in the urine of children [3–8] and adults [9, 10], including pregnant ...

WhatsAppContact Us

Development and Evaluation of a Semifield Test for ...

Dec 07, 2012·Mosquito coils, vaporizer mats and emanators confer protection against mosquito bites through the spatial action of emanated vapor or airborne pyrethroid particles. These products dominate the pest control market; therefore, it is vital to characterize mosquito responses elicited by the chemical actives and their potential for disease prevention.

WhatsAppContact Us

Pharmacognostical characterization and formulation of ...

Jan 11, 2021·In the present scenario, the markets are flooded with chemical-based mosquito repellent products that are proven to be toxic to the human life especially to the children and quite expensive in term of cost. This present investigation was attempted to evaluate the complete pharmacognostical characteristics of Elettaria cardamomum (Linn.) seed and to formulate eco …

WhatsAppContact Us

Health hazards of mosquito repellents and safe alternatives

The use of personal protective measures (PPM) like mats, bednets, screening, repellents, liquid vaporizers, mosquito coils, and so forth has been advocated as an effective tool in control of ...

WhatsAppContact Us

The 7 Best Natural Insect Repellents of 2022

May 07, 2021·The makers of some natural insect repellents have voluntarily registered their products for EPA evaluation, but sadly this list is limited, and the EPA's public registry was last updated in June ...

WhatsAppContact Us

Frontiers | Biocompatible Nutmeg Oil-Loaded Nanoemulsion ...

Hence, the use of insect repellent products is essential to prevent these diseases (Rocha-Filho et al., 2014). N, N-diethyl-3-methylbenzamide (DEET) is the synthetic main active ingredient in commercial mosquito repellent products, and it has excellent repellency against a wide range of insects (Hang Chio and Yang, 2008).

WhatsAppContact Us

High-throughput analysis of insecticides on malaria ...

Feb 07, 2019·Background Different setups and protocols have been developed for investigating insecticide effects on Anopheles (An.) mosquitoes, vectors of malaria. However, chemical uptake resulting from their tarsal contact with insecticide-treated material has seldom been investigated. To address the challenges encountered in the interpretation of bioassay data, a high …

WhatsAppContact Us

Insects Killing Sprays: Top products to keep bugs out of ...

Apr 30, 2020·Nutree Pure offers the Bugaway herbal mosquito repellent oil spray that is ideal for kids and adults and is available in a 100ml quantity. This product is 100% herbal with no chemicals, non-toxic ...

WhatsAppContact Us

N-Diethyl-m-toluamide (DEET) [134-62-3]

primarily by dermal application as an insect repellent against mosquitoes, ticks, fleas, leeches, and blackflies. It is commercially available at a concentration of 4% to 100% in formulations including lotions, creams, gels, aerosols, and pump sprays, usually with an ethyl or isopropyl alcohol base. Over 230 DEET-containing products are currently

WhatsAppContact Us

Bait Evaluation Methods for Urban Pest Management | IntechOpen

Jan 30, 2013·Active ingredient evaluation. A non-repellent, lethal and slow-acting active ingredient is required for a termite bait to be effective. When evaluating a potential bait toxicant one must first determine the toxicity of it towards the termite species it will be used againt. For example, at what concentration will it kill 90% of exposed termites ...

WhatsAppContact Us

Evaluating natural compounds as potential insecticides ...

Mar 26, 2018·Lethality of natural materials to insect pests. The mortality of three insect pests and one pollinator over 24 h in the biopesticide treatments and untreated control is presented in Fig. 1.Based on Kaplan–Meier survivorship with log-rank test, the results of survival rate analysis indicated that there were significant differences among the treatments in three tested insects …

WhatsAppContact Us

Development and validation of an analytical method using ...

Performance Liquid Chromatography (HPLC) to determine ethyl ... (EB) is a mosquito repellent developed by Merck, which is used in products for adults, children and especially babies, due to its low allergenic potential. The aim of this work was to validate an analytical methodology to quantify EB in a new ... were made for evaluation of the ...

WhatsAppContact Us

Chemical Composition and Repellency of Origanum …

Dec 25, 2018·Today, many essential oil products have been developed and are effective as repellents or surface spraying compounds on pest of medical important (17, 30). Essential oils have various activities against insect pests, including insecticidal, antifeedant, repellent, oviposition, deterrent and growth regulatory ( 30 , 31 ).

WhatsAppContact Us

2. RELEVANCE TO PUBLIC HEALTH

Technical DEET is a nearly colorless liquid with a faint characteristic odor. It is mainly used as a commercial insect or acarid repellent. In 1990, approximately 4 million pounds of the active ingredient DEET was used in commercial products and the average annual domestic use of DEET has been

WhatsAppContact Us

Concentrations of the Sunscreen Agent Benzophenone-3 in ...

Absorption of sunscreens across human skin: an evaluation of commercial products for children and adults. Br J Clin Pharmacol 48:635-637 10583038. Crossref, Medline, Google Scholar; Jones SE, Saraiya M. 2006. Sunscreen use among US high school students, 1999–2003. J Sch Health 76:150-153 16536855. Crossref, Medline, Google Scholar

WhatsAppContact Us

Insecticidal and oviposition deterrent effects of ...

Feb 17, 2021·However, they showed the same time toxicity over time as spinetoram when applied to adults of D. suzukii (LT50 ranging from 4.6 to 8.7 h) in a topical application bioassay.

WhatsAppContact Us