As early as 10,000 BC the human race understood the importance of controlling weeds in an agricultural setting. Weed control began with simple hand weeding, but proved to be extremely inefficient. Innovative means of control were discovered, but many of them were ahead of their time and did not become common practice. Thousands of years later, in 1000 BC, animals were finally domesticated and utilized as a means to improve cropping fields. It was not until the 20th century that pest control practices were modified and began to advance at a rapid pace. Mechanical tools emerged in the 1920s, followed by biological controls in the 1930s and chemical controls in the 1940s. Although chemicals are effective in eradicating countless pests, they have progressively gained scrutiny and speculation over time.
Pesticides became predominant practice in order to control nuisances in the mid20th century. In 2012 the EPA estimated 5.2 billion pounds of pesticides were used worldwide, forty percent of which were herbicides (Pesticide News Story, 2011). History testifies of the use of chemicals to control weeds, but it has only been in recent years that we have begun to understand and evaluate their impacts.
Pesticide use dates back as far as 1000 BC when the Greek poet, Homer, described the use of sulfur to deter pests (Some Pesticides, 2013). Since that time we have found other records that prove use and experimentation with chemical compounds. They include amurca, salts (including copper sulfate and sodium arsenate), and hemlock and lupine flowers. As time progressed, so did man’s ability to utilize organic chemicals. In 1904 petroleum oils were used to control weeds along irrigation ditches, in 1906 carbon bisulfide was used to control Cana...
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...ons of herbicides, we will be granted the ability to promote sustainable agriculture and preserve Earth’s natural beauty. Since the creation of synthetic chemicals in the 1940s we have progressed immensely to understand chemical drift, pollution, resistance, and the health risks associated to herbicides and their chemical compositions. Moreover, we have learned to harness the skills associated with herbicides and have used them for the world’s benefit to increase the agricultural industry, provide easier weed management in the home, maintain native lands in rangelands and forests, and manage weeds in public areas. Although herbicides receive a lot of negative opinions, they will continue to play a role in our lives in order to sustain all of these practices. Until herbicides can be replaced with something just as effective with smaller risks, they are here to stay.
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.
Presently, Monsanto is commonly known for its potent herbicide named Roundup. As the biggest-selling weed killer in the world, Roundup accounts for 17 percent of Monsanto’s total annual sales of $9 billion (Arax, 1997). The main ingredient of Roundup is glyphosate. Glyphosate is the eighth most commonly used herbicide in U.S. agriculture and the second most commonly used herbicide in nonagricultural settings (Cox, 1995). It’s estimated annual use according to the U.S. EPA is between 15 and 20 million pounds in agriculture and between 4 and 6 million pounds elsewhere (Arax, 1997). Monsanto claims that Roundup breaks down quickly in the soil, so that little or no toxic byproduct accumulates in plant or animal tissue - a viewpoint often disputed.
Have you ever thought about how your fruits and vegetables are grown? How about which ingredients are put into bug sprays and insecticides to ward off those pesky insects? Look no further because author Rachel Carson looks deep into the many environmental issues caused by pesticides and herbicides in her New York Times best-selling novel, “Silent Spring.” “Silent Spring” is a collection of studies which were performed in an effort to educate others about the harmful things occurring everyday to their foods and every-day environment in hopes of giving them a wake up call. This novel is thought by many to be a revolutionary novel that forced people to take notice of the harm being caused in their world, many of which people were unaware of. After discovering the results of these chemicals, it really makes one wonder, is the luxury of being insect free really worth all of the consequences?
Newman, William and Andrew Pollack. “Farmers Cope With Roundup-Resistant Weeds”. The New York Times. The New York Times, 3 May 2010. Web. 14 Apr. 2014
“(Silent Spring) spells out in memorable detail through out the book the effects of synthetic insecticides and herbicides on water, soil, plants, wildlife, fish and human beings. But in the book’s final chapter she suggests alternative courses of action for mankind —- a way out of this march toward death.” (Holmes, Pg. 123)
A question commonly associated with the word insecticides is, what are they? Well I have the answer, insecticides are chemicals that are used to eliminate insects. In the agricultural industry, insecticides are classified into different categories,and the most used is carcinogenic. A carcinogenic insecticide is a substance or agent producing or causing cancer. This is just one of the reason that I believe there are more cons then pros when dealing with a insecticide.. When I was a kid , I can remember my parents taking me and my brother an apple orchard and picking apples. I couldn't wait to eat them until I got home, but we couldn't eat an apple because of what insecticides could be on the apple
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.
Silent Spring describes many unethical practices such as massive spraying operations, the campaign against the Japanese beetle and gypsy moth, and the mass killing of birds and salmon (Carson, 1962). There is also reference to insects developing resistance to insecticides that further enhances the need to stop their use. The irresponsible use of man-made chemicals is highlighted and brought to home by describing the human maladies and problems caused by them. For example, the book links cell damage, cancer, mutations and Down’s syndrome to insecticide poisoning (Carson, 1962). The ending of the book is devoted to alternative methods such as introduction of natural enemies, diseases and parasites to control insects as safer and less costly to environment and
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.
The greenhouse gases are those that absorb the Earths radiation and thus contribute to the greenhouse effect, but water is also a major absorber of energy. Where there is an increase in the concentration of greenhouse gases (as with CO2 due to the burning of fossil fuels) this results in an enhanced greenhouse effect - which is of concern as it could lead to climate change (i.e. global warming).
The new chemicals which are produced to kill these strong pests and weeds may be more harmful to other plants and remove nutrients within the soil, in turn reducing the yield of agricultural crops. The benefits of these characteristics are seen in Argentina according to Pelletier (2010) as they use glyphosphate resistant soybean which allowed the comeback of this crop, as the soil was severely damaged from monoculture (The cultivation of a single crop in a defined area).... ... middle of paper ... ...
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.