Silent Spring by Rachel Carson Year Written: 1962 The beginning of the Environmentalist Movement Short Summary; The pesticides used in an attempt to control insects that were major threats to national and international agriculture and the deadly and lasting results. Rachel Carson elaborates with careful research the harmful effects of pesticides on insects‚ marine life‚ land mammals‚ plant life‚ soil and humans‚ which can store the toxins and result in convulsions‚ bone aches‚ cancer and death
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Extracts from black pepper discourage insect pests from laying eggs on leaves and pose lower risk to humans and the environment than other pesticides‚ a University of Ottawa researcher says. People in West Africa‚ India and South America have used pepper oil and dust for years to protect their homes and grain supplies from bugs. Doctoral student Ian Scott of the He found pepper worked better when insects are soft-bodied during the larval stage because the chemical is able to penetrate. Scott’s
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Is DDT beneficial? A 1947 ad for Penn Salt Chemicals demonstrates various applications and benefits of illegal and hazardous Dichlorodiphenyltrichloroethane (DDT). The ad tries to persuade industries‚ farmers and families to use the DDT of Penn Salt Chemicals as agricultural sprays and household pesticides by using various misleading and deceptive fallacies and claims. The visuals in the ad are bright‚ colorful and attractive pictures whereas style of written text differ according
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How to Make Homemade Pesticide Things You’ll Need * Spray bottle * Dedicated blender or food processor * Protective gloves Read more: How to Make Homemade Pesticide | eHow.com http://www.ehow.com/how_2043716_make-homemade-pesticide.html#ixzz2L1VJ1Ivu Instructions 1. * 1 Mix homemade garden sprays using water and plants (or dried powders) from the garden such as hot peppers‚ onions and garlic. Add a drop of dish detergent to help the solution stick and store in a
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The film‚ A Killer Bargain‚ explores the health dangers Indian cotton farmers face. These farmers spray harmful pesticides without any protective gear or other safety precautions‚ and some of these pesticides are so dangerous that they are banned in western countries. Larger manufacturers are aware that India has fewer rules on pesticides‚ so they strategically place their factories there. For example‚ the Cheminova factory from a Danish pesticide company transmits illegal pollution that gives those
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Paraphrase: Bacillus subtilis‚ known also as the hay bacillus or grass bacillus‚ engage for survival and competitive success in its natural habitats‚ B.subtilis shed light on the conduct of this organism throughout industrial fermentation. Certainly‚ the high adaptability of B.subtilis to environmental changes and insults stands at the basis of its success‚ not only in its character but also in marketable applications. Paraphrase: S.typhi might be younger than the split between the humans and the
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Oil Extraction The oil from citrus fruits is loaded with limonene. Extract the oil from the citrus rinds and use it to make insecticides whenever needed. A couple of small drops of citrus oil is all that is required to make insecticide spray. Sprinkling diluted oil around gardens repels pests. Keep the oil on hand and mix insecticides whenever a problem arises. To extract the oil‚ dry and grind the peels and leave them to soak in grain alcohol. Strain the mixture and leave the alcohol to evaporate
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types of insecticide. Purpose of Project : Mr Del Rey has an infestation of the leaf cutter ant‚ locally known as the ‘bachac’ in his garden. He needs to get rid of them as soon as possible and wants to use an insecticide that will get the job done quickly and efficiently. This experiment seeks to help Mr Del Rey choose the more effective insecticide by comparing the time taken to kill or achieve knockdown of bachacs using two different types of insectide; a commercial spray insecticide and a powder
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organophosphate insecticide; it is used to control certain insect population like boll weevil‚ med fly ‚and mosquitoes. Applications of malathion has been used on the ground or sprayed in the air when trying to get rid on adult mosquitoes associated with West Nile Virus. (ATSDR 2001). When using malathion by ground or spraying the EPA says it has a relatively low toxicity to humans‚ other mammals and birds when comparing the chemical to other organophosphate insecticides.(EPA2000 ab) However
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How to Make a Nicotine Insecticide Nicotine‚ a toxic chemical most often associated with cigarettes‚ has been used as an insecticide since colonial times. One excellent benefit of using nicotine in your garden is that its effectiveness is short lived‚ but potent. You can kill the critters that damage your plants while saving the ones that protect them. Only a few hours after spraying‚ you can harvest and eat your vegetables. Instructions Things you need • Cigarette butts (one cup
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