Croatian diatomites and their possible application as a natural insecticide

Purpose The paper focused onto the development of microcapsules by using two essential oils. It proposes the uses of eucalyptus oil and cedarwood oil as a natural insecticide. The purpose of this paper is to demonstrate the application of developed microcapsules to impart insect repellency on textile substrate. Design/methodology/approach The paper opted for an experimental study using two essential oils and gum in formations of microcapsules through a simple coaseravtion encapsulation technique. The developed solution was analyzed, including confirmation of size and structure through. Application of developed finish on substrate was also undertaken to prove better ability as repellent fabric. Findings The paper highlights useful invention of microencapsulated fabric developed with the combination of gum acacia and eucalyptus oil as core and shell material. The developed fabric has better ability to repel silverfish as compared to microencapsulated fabric developed with gum acacia (shell) and cedarwood oil (core). Research limitations/implications Due to the lack of time and less availability of essential oils, only two oils were used to test the insect repellent behavior. Practical implications This paper fulfills an identified need, it includes implications for the development of a very useful natural insecticide to repel silverfish (Lepisma saccharina) insect. This insect is a very common problem found in cloth wardrobes and bookshelves; it mainly attacks the fabric with cellulosic content and starch. Social implications Society will get major benefit of using these microencapsulated finished fabrics, which repel silverfish from their home and keep their clothing and books safe for longer period. The natural fragrance and medicinal benefits of these essential oils can never be ignored. Originality/value This study sets a new approach to repel insects like silverfish from the bookshelves and clothing wardrobes. A layer of insect repellent microencapsulated finished fabric can be added in these shelves and wardrobes. It is an eco-friendly approach of using natural essential oils instead of chemical insecticides.

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Mosquito Larvacidal Activity of Zingiber montanum Rhizome Extract Against Aedes aegypti larvae

BALABA JURNAL LITBANG PENGENDALIAN PENYAKIT BERSUMBER BINATANG BANJARNEGARA ◽

10.22435/blb.v15i1.1546 ◽

2019 ◽

pp. 33-40

Author(s):

Dwi Sulistia Ningrum ◽

Siwi Pramatama Mars Wijayanti ◽

Kuswanto Kuswanto

Keyword(s):

Aedes Aegypti ◽

Negative Impact ◽

Control Group ◽

Control Group Design ◽

Group Design ◽

Larvicidal Effect ◽

Natural Insecticide ◽

Post Test ◽

Quasi Experimental ◽

Lc50 And Lc90

Aedes aegypti is the main vector which transmits Dengue virus as causing agent of Dengue Haemmorhagic Fever (DHF). Chemical control of Ae. aegypti have an impact on the environment and humans, also burden a high cost. One of the efforts to reduce the negative impact of synthetic insecticide, which is to find out alternative natural insecticide from plant-based insecticides. The purpose of this research is to determine the killing power of the rhizome bangle extract to Ae. aegypti larvae. This research was a quasi-experimental design with post test only control group design. The concentration of extract rhizome bangle used were 0%; 0.125%; 0.25%; 0.5%; 0.75% and 1%. The mosquito sample used in this study were instar III of Ae. aegypti larvae as many as 600 larvae. Data analysis used univariate and bivariate (probit and Kruskal Wallis test). The results showed that there was an effect of the concentration of extract rhizome bangle against the mortality of Ae. aegypti larvae with p=0,002 (p<0,05). Extract rhizome bangle effectively killed Ae. aegypti larvae with LC50 and LC90 were 0.148 % and 0.338 %, with the most effective concentration is 1%. Based on this research, extract rhizome bangle has a larvicidal effect on Ae. aegypti, so it can be used as an alternative method to minimize the usage of chemical larvicides that easily applied by the community.

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PENGARUH EKSTRAK DAUN KUNYIT (Curcuma longa Linn.) SEBAGAI INSEKTISIDA ELEKTRIK TERHADAP MORTALITAS NYAMUK Culex sp. L.

Pro-Life ◽

10.33541/pro-life.v6i1.937 ◽

2019 ◽

Vol 6 (1) ◽

pp. 44

Author(s):

Aseptianova Aseptianova

Keyword(s):

Disease Prevention ◽

Toxicity Test ◽

Curcuma Longa ◽

Research Result ◽

Probit Analysis ◽

Turmeric Extract ◽

Natural Insecticide ◽

Randomized Design ◽

Completely Randomized Design ◽

Culex Sp

Mosquito Culex sp. L. is a vector of elephantiasis disease, prevention effort of elephantiasis vector is usually done by using chemical and natural insecticide. In the leaves of turmeric can be used as a natural insecticide in the prevention of elephantiasis vector disease. The objectives of this research are (1) to know the effect of turmeric extract ((Curcuma longa Linn.) As electrical insecticide to mortality of Culex sp. L. (2) To know the concentration of turmeric extract (Curcuma longa Linn.) Which is effective to be used as an electric insecticide against mortality of Culex sp. L. expressed by the toxicity test of LC50 and LT50. The method used in this research is an experimental method with Completely Randomized Design (RAL) which consists of 5 treatments and 4 replications. Based on research result of turmeric extract (Curcuma longa Linn.) Have a very significant effect on mortality of Culex sp. L. with sig value 0,000 <sig value. 0.05. The probit analysis of LC50 of turmeric leaves extract on mortality of Culex sp. L. is 44, 840 ml, meaning that at that concentration has occurred 50% mortality of total mosquito. The probit analysis of LT50 turmeric leaves extract on mortality of Culex sp. L. for 1.825 hours. Keywords: turmeric leaves extract, mortality Culex sp. L. mosquito

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Comparative transcriptome analysis reveals candidate genes for the biosynthesis of natural insecticide in Tanacetum cinerariifolium

BMC Genomics ◽

10.1186/s12864-016-3409-4 ◽

2017 ◽

Vol 18 (1) ◽

Cited By ~ 6

Author(s):

Sana Khan ◽

Swati Upadhyay ◽

Feroz Khan ◽

Sudeep Tandon ◽

Rakesh Kumar Shukla ◽

...

Keyword(s):

Candidate Genes ◽

Transcriptome Analysis ◽

Comparative Transcriptome ◽

Comparative Transcriptome Analysis ◽

Natural Insecticide ◽

Tanacetum Cinerariifolium

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Boldo, Its Secondary Metabolites and their Derivatives

Current Traditional Medicine ◽

10.2174/2215083804666181113112928 ◽

2019 ◽

Vol 5 (1) ◽

pp. 31-65 ◽

Cited By ~ 2

Author(s):

Bruce K. Cassels ◽

Gonzalo Fuentes-Barros ◽

Sebastián Castro-Saavedra

Keyword(s):

Antioxidant Activity ◽

The Other ◽

Herbal Remedies ◽

Medical Applications ◽

High Concentration ◽

Active Constituent ◽

Research Papers ◽

Scientific Support ◽

Natural Insecticide ◽

The Subject

Boldo leaves (Boldo folium, from Peumus boldus Mol.) are very frequently used as a medicinal herb in Chile and are exported to many countries to be used in teas or as extracts included in herbal remedies, primarily as an aid to digestion and as a mild sedative. Scientific support for these uses is scanty, and boldine, an alkaloid viewed as characteristic of the tree and present in high concentration in the bark, is extracted by specialized companies and sold as the supposed main active constituent. Consequently, boldine has been the subject of a considerable number of research papers, while some of the other alkaloids present to a greater extent in the leaves have been relatively neglected except when found in large amounts in other species. These studies range from assays of antioxidant activity to anti-inflammatory, antineoplastic and other medical applications. The essential oil, usually containing a large percentage of the toxic ascaridole, was once used as a vermifuge and is now regarded with caution, but is still of interest as a possible natural insecticide, fungicide, antiparasitic and herbicide. The last decade has seen an explosive increase in papers pointing to possible uses of boldo and its constituents. This review attempts to bring these publications together in a comprehensive way with the purpose of stimulating and orienting further research into the useful properties of this Chilean endemic tree.

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The Activity of D-Limonene from Sweet Orange Peel (Citrus Sinensis L.) Exctract as a Natural Insecticide Controller of Bedbugs (Cimex cimicidae)

Oriental Journal Of Chemistry ◽

10.13005/ojc/350424 ◽

2019 ◽

Vol 35 (4) ◽

pp. 1420-1425 ◽

Cited By ~ 2

Author(s):

Sri Mursiti ◽

Nanda Ayu Lestari ◽

Zerlinda Febriana ◽

Yuan Maylia Rosanti ◽

Tri Wahyu Ningsih

Keyword(s):

Essential Oil ◽

Citrus Sinensis ◽

Sweet Orange ◽

Orange Peel ◽

Irregular Surface ◽

Natural Insecticide ◽

Activity Test ◽

Blood Sucking ◽

Secondary Infections ◽

Chemical Pesticides

Bedbugs are harmful human blood-sucking ectoparasites. The disadvantages of a bedbug bite cause itching, redness bumps, secondary infections, and anemia in children. Bedbugs controller so far uses harmful chemical pesticides, but reappearance of bedbugs indicates less effective chemical pesticides, and becomes a serious problem. So it needs safer controller for human health. This study aims to analyze the d-Limonene activity of orange peel (Citrus sinensis L.) in controlling the bedbug infestation (Cimex cimicidae). The study was conducted through 5 stages: d-Limonene isolation, GC-MS characterization, bioassay Y test d-Limonene nanoparticles, SEM characterization, and d-Limonene activity test on bedbug. The results showed that the essential oil of orange peel contained the main compounds as d-Limonene (90.018%), 1,6-Octadien-3-ol, 3,7-dimethyl- (3,017%), β-Myrcene (2.071%), Octanal (0.349%), 1-Octanol (0.589%), 1R-α-Pinene (0.688%), 6-Octen-1-ol, 3,7-dimethyl- (0.667%), 3-Cyclohexene-1- methanol, α, α, 4-trimethyl-, (S) - (1.453%), and Bicyclo [3.1.1] heptane, 6.6-dimethyl-2-methylene-, (1S) - (1.147%). The Bioassay Y test shows that d-Limonene was both repellent and fumigant, d-Limonene nanoparticles had uneven and irregular surface morphology, and in the flea activity test showed more than 50% bedbugs death. These research concluded that d-Limonene compounds from sweet orange peel had activity to control the bedbugs.

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