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What are the effects of genetically modified organisms (GMOs)
Integrated pest management papers
What are the effects of genetically modified organisms (GMOs)
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Pests live where they are not wanted and cause harm to humans, plants, and animals. To eliminate these pests, chemicals called pesticides are often used. Pesticides are not a modern invention. The first recorded use of pesticides is 4500 years ago by Sumerians who used elemental sulfur to rid their plants of insects. Persians around 2000 years ago are known to have used dried daises as an insecticide to protect their grain. Up until the 1940s natural sources were only used for pest control. In 1939, Dichloro-Diphenyl-Trichloroethane, or DDT was discovered by Dr. Paul Muller and became the first synthetic pesticide. It was found be extremely effective, but many years later it was linked with serious health concerns leading to 86 countries banning …show more content…
The most widely used ones are insecticides, herbicides, rodenticides, bactericides, fungicides, and larvicides. In the US the EPA is the main body tasked with regulating pesticides. The USDA monitors pesticide residue in meat, eggs, and dairy, while the FDA monitors fruits and vegetables. The EPA’s power is defined by multiple laws. The Federal Insecticide, Fungicide, and Rodenticide Act allows EPA to register pesticides upon meeting a set of guidelines. The Federal Food, Drug, and Cosmetic Act sets maximum tolerance pesticide levels on foods. The Food Quality Protection Act amended previous laws and required additional safety factors be applied for foods that are more common in diets of children. It also stated that tolerance should be judged based on aggregate exposure. Lastly, The Endangered Species Act required that pesticides will not be registered by the EPA that harm animals on the endangered …show more content…
Overall, there is excessive and reckless usage of pesticides in this country. By being educated on methods like the Integrated pest management (IPM) we can more efficiently and effectively use pesticides. IPM focuses on using disease-resistant plants, encouraging natural predators of problem pests, and timing pesticide applications to when pests are most susceptible. For example a method IPM would recommend is changing irrigation practices to reduce pests, since too much water can increase root disease, weeds, and various species of bugs. Pesticides are only one weapon in the fight against pesticides. We need to utilize multiple other approaches like genetically engineered organisms. Scientists have taken a common soil bacterium, Bacillus thuringiensis (Bt) and inserted a gene from the bacterium that produces a toxin into plants. This gene causes plants to produce the natural toxin that is harmless to humans, but lethal to certain insects. Farmers and consumers ultimately gain health benefits from reduced exposure to pesticide residue. Important environmental benefits are gained as well, it limits pesticide runoff that otherwise would pollute our environment. Billions of dollars of economic benefits are gained by reducing the need to purchase pesticides and machinery. There are even higher crop yields by utilizing the engineered plant. There is the
My initial observation was that simple conservation actions such as reducing the use of pesticides can achieve measurable improvements in habitat quality and environmental health. Herbicides are toxic to most mammals as well as to the beneficial insects that you want to encourage in your garden. Sometimes herbicides seep into the ground water; causing contamination of which the long term effects are not known. Herbicide application can also result in drift or movement in the soil, this endangers wanted vegetation nearby. Herbicides are used far too rampantly. Excessive use of toxic herbicides is used when not necessary and because most are not aware of the many other natural alternatives. We must find more ways to cut back on the use of chemical herbicides and change to biological weed control methods.
The pesticide DDT banned in 1987 was a detrimental to the environment leading to it to be banned in 1987. DDT remains in the soils for a long period of time. The chemicals affect the ecology of the soil and water run off causing contamination of livestock and native animals and aquatic species. Studies indicated a range of human health impacts from DDT including cancers, infertility, miscarriage and nervous system impairment. The social and economic impact of DDT use in viticulture was significant.
What is a pesticide?A pesticide is a chemical substance used to kill pests, especially insects. A pesticide is also refered to as a biocide. Most pesticides are applied in spray form but occasionaly you will see pesticides that are in powder or pellet form. Pesticides are used on a variety of things, anything from crops like corn, barley, and wheat, to plants like petunias, marigolds, and rhodadendrons, which are usually found in small gardens greenhouses, and even in your backyard.
The pesticides must be natural, and be part of the approved list established by the Organic Foods Production Act of 1990 (6). The crop must also be void of any prohibited substances for at least three years. The time limit is set to allow room for chemicals, which may have an effect on the crop, that may reside over time to become less abundant. This is only a pre-requisite to even have the crop to be considered organic, meaning that the crop may still fail the certification of being organic. The crop that is used is also prohibited from going through genetic engineering.
Herbicide resilient crops increase the use of herbicides, swelling costs for farmers as well as creating conservational problems, affecting inferior communities who live near large GM farms in developing countries, as well as causing pollution. Insecticide crops are constantly producing toxins when they're not even necessary, and can indiscriminately kill other insects beneficial for the environment. Continued manufacturing promises about the ability of GM crops to tackle the world's growing social problems are pure myth: there is still not a single commercial GM crop with increased yield or salt-tolerance, enhanced nutrition or other 'beneficial' traits. GM crops are confined to a handful of countries with highly developed agricultural subdivisions – where GM-cash-crops are grown to be sold on the world market for materials, feed and fuel, and not intended to feed
Actually it is said that insects are becoming immune to these poisons. When a insecticide is first used, a small group of the insects may survive the exposure to the insecticides due to their distinct genetics. These individuals pass along the genes for resistance to the next generation. The over and over uses of the insecticide will actually increase the proportion of less-effected insects in the population. Worldwide, more than hundreds species of insects have developed some degree of immunity. There are many important issues in the world regarding insecticides deterioration of the environment and it's affects on the average person. Though, the one that is worst then you know it is that individuals have it in the food that they consume. Yet it is still found daily in foods all around the world. Insecticides are used by produce growers to control insects and some pests that can destroy crops. These toxins are back firing on its users because they are being eaten by humans in the forms of fruits and vegetables that have remaining of the insecticide on them. How safe are these toxins to humans and what is being done help the environment and the health of humans and non-targeted animals? How much does the average person consume harmful amounts of toxins during every meal? If the levels are unsafe, why is this problem continuing to be ignored by the people who are supposed to
To help keep crops from being destroyed, conventional farmers use many methods such as pesticides, herbicides, and fungicides. Nearly 1 billion pounds of these chemicals are used every year (“pesticides”). Because of this excessive use, some scientists express concern that using artificial chemicals in the farming process could produce unhealthy crops. People who ate it over a long period of time could suffer from degraded health and stunted growth (“Organic Foods”). For example, in 1989, the EPA banned the use of Alar which was a chemical used to ripen apples (“Farming, Organics”). This chemical proved to be carcinogenic after causing tumors in mice after several laboratory tests (“Organic Food”). As a result of these findings there was a dramatic increase of the sales for organic food (“Organic Food”). Another study found that Atrazine (one of the most widely used herbicides in the United States) has the potential of being carcinogenic and reducing sperm counts in males (“Organic Food”). This was further proven when evidence was found that chemicals u...
...ortation of plants, fruits, vegetables, and animals. Indiscriminate pesticide use kills the good with the bad. Long term and wide spread pesticide use poisons underground water sources, which, in turn, poison plants, animals, and humans. And, finally, by our uninformed actions, new super races of pests continue to evolve and create even greater dangers than the original.
With the world having so many people on it we use a lot of pesticides and fertilizers. If it was not for the help of these we would not have gotten to the place we are now. Pesticides and fertilizers do a lot more than just help grow and safe from pests. “Nearly 50% of the world labor is employed in agriculture and they significant risk”
(NPIC) Years down the line a scientist named Mueller also discovered DDT in 1939. (NPIC) DDT was a well-known pesticide used to control insects in the United States until it was canceled in 1972 by the United States Environmental Protection Agency. (NPIC) People that served the military at the time of World War II used DDT for public health purposes. DDT was used to control all of the following malaria, typhus, body lice, and bubonic plague. (NPIC) DDT is still available to be legally produced in the United States, it can only be sold and used by foreign countries.
As time has progressed, there has always been an overarching need for high amounts of crop production throughout the world. With the rapid rate of population growth, the need for crops and other sources of nutrients is only increasing. In order to meet these high demands and increase yields, farmers and other agriculturalists have started implementing the use of pesticides. These chemical mixtures are being used in order to prevent, destroy, repel or mitigate any pests from destroying growing crops. However, using pesticides on crops can create massive amounts of pollution, negatively affect an individual’s health, and can spark biodiversity loss within an ecosystem. According to Michael C.R. Alavanja, “Over 1 billion pounds of pesticides are used within the United States (US) each year and approximately 5.6 billion pounds are used worldwide”. With all this in mind, it is clear that pesticides should not be made available to farmers and agriculturalists, and should
Instead of using pesticides in farming a better alternative would be biological control. This is when a natural predator is released into the crop growing area as a result the number of pests can be reduced.
Each year there are 10,000 pesticide related poisonings. On July 4th 1985, over 300 Californians became sick after eating watermelons treated with the pesticide tenik. Testing supermarket produce is a way of determining the amount of exposure the consumer receives through common produce like carrots, tomatoes and lettuce. 44% of foods that were tested in supermarkets were found to have some traces of pesticide residue on them. Of all the pesticides found, nineteen of them were a pesticide called DDT. DDT was banned in this country 12 years prior to the testing. It was believed that these chemicals might have entered this country from another country that doesn’t have pesticide restrictions as the U.S. does.
Our planet is suffering from severe pollution, which ranges from contaminated air, water and soil as well. Humans are doing nothing to reduce the amount of pollution that is harming our earth. To understand how pollution works first you must understand that there are different types of pollution. The most common types of pollution and the ones that I will be focusing on which are the ones doing the most harm to our planet are air pollution, water pollution, soil contamination and littering. In order to help out and reduce pollution in our planet people need to be more aware of what these problems are and about the severe damages that they are causing our planet. Before industrialization really jumped into place and had an effect on large cities, nature had its own way of cleaning up its own air and itself. Wind scattered gases, rain washed many substances and the rest dissolved into the ground; while plants absorbed carbon dioxide and made it into oxygen. With big cities growing more every time and with more towns that were becoming more industrialized a lot of more waste began to be released into the environment and the atmosphere and soon this was more than enough for nature to handle. In order to stop and reduce pollution people need to understand the damage that it is causing our environment and our planet as well. People need to be more aware of how they can help out and do their part in reducing these problems that are causing our planet to die slowly with people not even noticing it.
Pesticide is a chemical used to prevent, wipe out and control the pest problem in agriculture. The use of pesticides have become a common practice around the world, and used almost everywhere, such as agricultural fields, homes, park and school, and so on. Most pesticides are insecticides, herbicides and fungicides that have distinct purposes. Insecticides are used to control insects; herbicides are used to destroy plants; fungicides are used to prevent molds and mildews. Most commonly pesticides contain highly toxic chemical such as Acid copper chromate (ACC), Acephate and Chlorpyrifos, and so on. One of example of insecticides, Chlorpyrifos, sprays widely on a variety of food and golf courses in order to control pests in a cornfield. However, “Chlorpyrifos can cause cholinesterase inhibition in humans; that is, it can over stimulate the nervous system causing nausea, dizziness, confusion, and at very high exposures (e.g., accidents or major spills), respiratory paralysis and death.” (EPA GOV) In the market has thousands of products are similar as Chlorpyrifos.