STUDY ON THE EVOLUTION OF MOSQUITO REPELLENTS By:- Rajdeep Laha Calcutta Business School PGDM 2010-12 OVERVIEW Traditionally‚ various types of substances have been used to repel mosquitos. These include such things as smoke‚ plant extracts‚ oils‚ tars‚ and muds. As insect repellent technology became more sophisticated‚ individual compounds were discovered and isolated. This allowed the formulation of new‚ more efficient forms of mosquito repellents. The first truly effective active
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INSECTS An insect is a creature without a backbone and with a body divided into three main parts: the head‚ thorax and abdomen. Most insects have three pairs of legs and one or two pairs of wings. The ’feelers’ or antennae on the insect’s head are it sense of touch and smell. Some insects have a sting in the abdomen. We already know that there are over a million different kinds of insects‚ and many new species are being found all the time. Insects are by far the biggest group of creatures on
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INSECTS Insects‚ being larger and having a hard‚ chitinous and therefore impermeable exoskeleton‚ have a more specialised gas exchange system. Insects have no transport system so gases need to be transported directly to the respiring tissues. There are tiny holes called spiracles along the side of the insect. The spiracles are openings of small tubes running into the insect’s body‚ the larger ones being called tracheae and the smaller ones being called tracheoles. The ends of these tubes‚ which
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cuisine by Adrian Forsyth Can Insects Help with Food Shortage in the World? As the number of humans increase‚ we will have to look for new sources of food. In some cultures‚ insects have been consumed for thousand of years‚ and many countries in the world such as China‚ Thailand‚ South America and Africa use insects as a delicacy and for snacks because they are tasty and nutritious‚ high in protein‚ and low in carbohydrates. One of the advantages with insects is their abundance and that
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Citronella leaf based herbal mosquito repellents using natural binders Nandini Rani‚ Aakanksha Wany‚ Ambarish Saran Vidyarthi and Dev Mani Pandey* Department of Biotechnology‚ Birla Institute of Technology‚ Mesra‚ Jharkhand- 835215‚ India * Corresponding author: Dev Mani Pandey‚ email: dmpandey@bitmesra.ac.in Received: 15 April 2013 Accepted: 27 April 2013 Online: 04 May 2013 ABSTRACT Citronella grass has been serving from years as a mosquito repellent in the field of ancient and modern
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Insects Insects are neumerout invertebrate animals that belong in the Phylum Arthropoda and Class Insecta. The class Insecta is divided into 2 subclasses: Apterygota‚ or wingless insects‚ and Pterygota‚ or winged insects. Subclass Pterygota is futher divided on basis of metamorphosis. Insects that have undergone incomplete metamorphosis are the Exopterygota. Insects that undergo complete metamorphosis are the Endopterygota. Insects have an outer bilateral exoskeleton to which the muscles are
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control efforts difficult. A comprehensive classification by species‚ country and habitat‚ including potential environmental management measures‚ is presented in the Manual on Environmental Management for Mosquito Control (WHO‚ 1982). Insect vectors represent the largest group of disease transmitting agents. In most cases and for the most widespread diseases‚ mosquitoes are the main vectors. As a matter of fact‚ many people are suffering from mosquito-borne diseases in which dengue fever
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to prevent mosquitoes is to use Mosquito Repellent. This is the reason why the researchers want to make an alternative Mosquito Repellent. There are many commercial Mosquito Repellent available in the market. The commonly used commercial Mosquito Repellent in the Philippines is quite unaffordable and use chemical that may cause irritation. The researchers planned to use natural ingredients. Since the ingredient to be use is natural‚ the Mosquito Repellent to be made is more affordable and environmental
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REVIEW OF RELATED STUDIES For the natural repellent with the most scientific backing‚ look to lemon eucalyptus oil‚ the sole natural ingredient to get the EPA’s (Environmental protection agency) endorsement. Numerous studies show that it works just as effectively as low levels of DEET (N‚N-Diethyl-meta-toluamide) (7 percent to 15 percent concentrations) by masking the body’s natural odors. Look for a 30 percent to 40 percent concentration for maximum effectiveness. The most ancient natural remedy
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Division of Laguna District of San Pedro PACITA COMPLEX NATIONAL HIGHSCHOOL Sampaguita St. Phase. 6A-1 Pacita Complex I Brgy. San Vicente San Pedro‚ Laguna Tel. and fax No. (02) 8475316 E-mail: pcnhs_m2c99@yahoo.com OREGANO MOSQUITO REPELLENT A Science Investigatory Project (S.I.P) presented to the Science Teacher of PCNHS By: Jade Congcong Elizabeth Jacinto Zyra Calibara Anndrie Gaspar Tricia Arcabos Neale Teope September 24‚ 2014 Republic of Philippines
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