What are pesticides and how do they work?

Plants, insects, bacteria, fungi and other organisms are natural part of the environment. Some can benifit people, while others can be pests that you may need or want to control. You can choose from many different methods to control a pest. One method is to use pesticides.

Homework

Have anyone started their Science fair project (Homework) yet. If you do have you seen anything changing because I want to know because my one doesn't really seem right. Please reply back. :):):)

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Pesticides

I have started my homework on Monday and today (Tuesday) I found out that my celery stalk has gone a little brown. I used weed killers to represent "Pesticides"

i need help with homework what we do

what do we do

HELP PLEASE!

Are we suppose to only use food colouring for the Science project or can we use other stuff. If we can use other stuff to put instead of food colouring where do I buy it and what is it called? Please reply back if you know. Thanks

:)

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types of pesticides

Algaecides are used for killing and/or slowing the growth of algae.
Antimicrobials control germs and microbes such as bacteria and viruses.
Desiccants are used to dry up living plant tissues.
Defoliants cause plants to drop their leaves.
Disinfectants control germs and microbes such as bacteria and viruses.
Fungicides are used to control fungal problems like molds, mildew, and rust.
Herbicides kill or inhibit the growth of unwanted plants, aka weeds.
Illegal and Counterfeit Pesticides are imported or sold illegally.
Insecticides are used to control insects.
Insect Growth Regulators disrupt the growth and reproduction of insects.
Miticides control mites that feed on plants and animals. Mites are not insects, exactly.
Mothballs are insecticides used to kill fabric pests by fumigation in sealed containers.
Ovicides are used to control eggs of insects and mites.
Pheromones are biologically active chemicals used to attract insects or disrupt their mating behavior. The ratio of chemicals in the mixture is often species-specific.
Plant Growth Regulators are used to alter the growth of plants. For example, they may induce or delay flowering.
Repellents are designed to repel unwanted pests, often by taste or smell.
Rodenticides are used to kills rodents like mice, rats, and gophers.
Molluscicides are designed to control slugs, snails and other molluscs.
Wood Preservatives are used to make wood resistant to insects, fungus and other pests.

pesticide

      I found this cool thing on a website.                                                                                                                                                                                          A pesticide is any substance used to kill, repel, or control certain forms of plant or animal life that are considered to be pests. Pesticides include herbicides for destroying weeds and other unwanted vegetation, insecticides for controlling a wide variety of insects, fungicides used to prevent the growth of molds and mildew, disinfectants for preventing the spread of bacteria, and compounds used to control mice and rats. Because of the widespread use of agricultural chemicals in food production, people are exposed to low levels of pesticide residues through their diets. Scientists do not yet have a clear understanding of the health effects of these pesticide residues. Results from the Agricultural Health Study, an ongoing study of pesticide exposures in farm families, show that farmers who used agricultural insecticides experienced an increase in headaches, fatigue, insomnia, dizziness, hand tremors, and other neurological symptoms. Evidence suggests that children are particularly susceptible to adverse effects from exposure to pesticides, including neurodevelopmental effects. People may also be exposed to pesticides used in a variety of settings including homes, schools, hospitals, and workplaces

this is so funny and cool about bees talking about pesticides hahahahahahahahahahahahahaha

found this on google

very cool images

Pesticide poisoning is a serious health problem

Pesticide poisoning is a serious health problem that disproportionately affects infants and children. Pesticides are designed to kill, reduce or repel insects, weeds, rodents, fungi, and other organisms that can threaten public health and national economies. However, when improperly used or stored, these chemical agents can also harm humans. Key risks are cancer, birth defects, and damage to the nervous system and the functioning of the endocrine system.
People can be exposed to excessive pesticide levels while working; via food, soil, water or air; or by directly ingesting pesticide products. Pesticides are known to cause millions of acute poisoning cases per year, of which at least one million require hospitalization. The number of children involved in such incidents is unknown but, based on the experience of many countries, likely to be large. Between one and three agricultural workers per every 100 worldwide suffer from acute pesticide poisoning [1, 2], and adolescents are often the victims.[3, 4] The contribution of pesticides to chronic diseases, on the other hand, is unknown.
Tackling the risks to children of pesticide exposure and poisoning requires comprehensive strategies. These strategies should be designed for the local level and supported nationally, regionally and internationally. They should include research activities on how to develop effective economic and legal instruments. In addition, they should ensure that the public is informed, health conditions are monitored and, where necessary, treatment programs are established.
The need for such strategies is confirmed by a number of international agreements that call for actions to protect children and the environment from the negative effects of human activities. These include the United Nations Convention on the Rights of the Child as well as Agenda 21, which was adopted by the United Nations Conference on Environment and Development.
The purpose of this document is to provide you with information for advocacy and action directed at reducing pesticide poisoning and addressing its effects on children and women

picture:):)

:(   :(

Pesticide poisoning is an important occupational health

Pesticide poisoning is an important occupational health issue because pesticides are used in a large number of industries, which puts many different categories of workers at risk. Extensive use puts agricultural workers in particular at increased risk for pesticide illnesses.Workers in other industries are at risk for exposure as well. For example, commercial availability of pesticides in stores puts retail workers at risk for exposure and illness when they handle pesticide products.The ubiquity of pesticides puts emergency responders such as fire-fighters and police officers at risk, because they are often the first responders to emergency events and may be unaware of the presence of a poisoning hazard.The process of aircraft disinsection, in which pesticides are used on inbound international flights for insect and disease control, can also make flight attendants sick.Different job functions can lead to different levels of exposure. Most occupational exposures are caused by absorption through exposed skin such as the face, hands, forearms, neck, and chest. This exposure is sometimes enhanced by inhalation in settings including spraying operations in greenhouses and other closed environments, tractor cabs, and the operation of rotary fan mist sprayers

picture

Pesticides:)

I went on to do some research about peticides. It says that Pesticides can protect your health by killing germs, animals or plants that could hurt you. However, most pesticides can be harmful to people or pets.

I website I found it is:

http://www.nlm.nih.gov/medlineplus/pesticides.html

pesticide poisoning

A pesticide poisoning occurs when chemicals intended to control a pest affect non-target organisms such as humans, wildlife, or bees. There are three types of pesticide poisoning. The first of the three is a single and short-term very high-level of exposure which can be experienced by individuals who commit suicide, as well as pesticide formulators. The second type of poisoning is long-term high-level exposure, which can occur in pesticide formulators and manufacturers. The third type of poisoning is a long-term low-level exposure, which individuals are exposed to from sources such as pesticide residues in food as well as contact with pesticide residues in the air, water, soil, sediment, food materials, plants and animals.



In developing countries, such as Sri Lanka, pesticide poisonings from short-term very high-level of exposure (acute poisoning) is the most worrisome type of poisoning. However in developed countries, such as Canada, it is the complete opposite: acute pesticide poisoning is controlled, thus making the main issue long-term low-level exposure of pesticides.

Effects of Pesticides Learning Center » Effects of Pesticides » Effects of Pesticides Email Print What are Pesticides? If it has the suffix –cide in it, then you know it's about killing something. Pesticides are designed to kill insects, fungus, bacteria and other things that feed on crops, are vectors for disease, nuisances, and things that destroy property. Farming is big business. And some of the farming companies are bottom–line entities in business to make money at any cost. Pesticides and genetically modified organisms are how they insure that they will get the crop yield they demand every season, no matter how it hurts the environment or the consumers. Two types of pesticides are biological and chemical. Biological pesticides can be developed using fungi, bacteria and other organically present substances. Some biological pesticides are microorganisms that, without any manipulation, demonstrate natural effectiveness in targeted pest control. These generally aren't toxic to humans or animals and don't leave a persistent residue. Did You Know? Seven of the most toxic chemical compounds know to man are approved for use as pesticides in the production of foods! Who approved them? A multinational organization called The Codex Alimentarius Commission (CAC). It was formed in 1963 from a cooperative effort between the World Health Organization (WHO) and the Food and Agriculture Organization of the United Nations (FAO). Their overall objective was "…to protect the health of the consumer and ensure fair practices." The intent of the original 172 nations involved in this effort was to develop a set of food guidelines, standards, and codes of practice. It was to be an international endeavor to promote safety in food. In spite of their stated consumer protection responsibilities, the CAC approved toxic chemicals for use on our crops. These toxins are referred to as Persistent Organic Pollutants (POP's). They're called persistent because they are not easily removed from the environment. The greatest risk to our environment and our health comes from the chemical pesticides. In spite of the dangers, the government maintains its approval of the use of toxic chemicals to make pesticides. And science is constantly developing variations of poisons. Two classes are broad-spectrum and narrow-spectrum pesticides. Broad-spectrum pesticides kill many kinds of pests, while narrow-spectrum pesticides do just the opposite. Narrow-spectrum pesticides are developed to kill specific organism types. Examples are algicides for algai, avicides for birds, fungicides for fungi and oomycetes (also called water molds, they use surface water including preciptiation on plants, to move around). Most pesticides kill pests directly on contact. Systemic pesticides work differently. They penetrate to the inside of a plant traveling along its absorption path. These poisons work by poisoning the pollen and nectar of flowers and this can kill needed pollinators like butterflies and bees. Shocking Facts Pesticides are a major threat to bees. The systemic poisoning of flowers has killed scores of bees. We're simply losing too many of them. The bees and butterflies among others are pollinators and they represent a natural tour de force in perpetuating plant cycles and evolution. You see, they do cross pollination naturally. More than 25% of the bee colonies died in winter 2006/07. That translates to a loss of tens of billions of bees. And it's estimated that this loss will negatively impact the agricultural economy to the tune of $8 to $12 billion. Who's at Risk for Exposure to Pesticides? Farmers and their families and other persons who use chemical pesticides regularly are at greatest risk for achieving toxic levels in their bodies. The danger is spread out to larger areas, as the pesticides: Are carried on the wind Leave residues on produce Remain inside produce and animals Run off into open water, contaminating public water supply as well as fish and other seafood Anyone who uses pesticides or is present when pesticides are sprayed is at risk for dangerous exposure. The pesticides can enter the body through skin, eyes, mouth and nose. What are the Dangers from Pesticides Exposure? Pesticides can be toxic to humans and lower animals. It can take a small amount of some toxins to kill. And other toxins that are slower acting, may take a long time to cause harm to the human body. Pesticide production can be dangerous, too. One disaster at a pesticide manufacturing plant was in Bhopal, India. The plant accidentally released 40 tons of an intermediate chemical gas, methyl isocyanate, used to produce some pesticides. In that disaster, nearly 3,000 people were killed immediately, overall approximately 15,000 deaths occurred. Today nearly 100,000 people suffer from mild to severe permanent damage as a result of that disaster.¹ In China, it's estimated that 500,000 people suffer pesticide poisoning annually, and some 500 of them die.² Children seem to be greatly susceptible to the toxic effects of pesticides. The Natural Resource Defense Council has collected data which recorded higher incidence of childhood leukemia, brain cancer and birth defects. These results correlated with early exposure to pesticides.³ Doctor Group's Comment: Neurotoxins are any substances that can cause disruption to the neurological system including the brain. Many neurotoxins are organophosphates, and several are currently approved and being used to make pesticides. Even just using pesticides in amounts within regulation, studies have revealed neurotoxins can do serious damage during development. Researchers report the dangers of pesticides can start as early as fetal stages of life. The Pesticides entry at Wikipedia.org lists some of the results that have been recorded in recent years including: Fetuses, (pre-birth babies), may suffer from exposure and exhibit behavioral problems, growth issues Lower cognitive scores, fewer nerve cells and lower birth weight A lower resistance to the toxic effects of pesticides A greater risk (70% increase), for Parkinson's disease, even with low levels of pesticides Can you believe the government approved the use of some organophosphates despite the occurrence of illnesses? It makes you wonder just who the Environmental Protection Agency (EPA) is working to protect. What you also need to understand is that toxins from pesticides can remain in the body and build up in the liver. And, even at "safe" levels your reactions can be mild to severe. High levels of exposure can be fatal. How do you know if you're going to be ill? You don't; you just have to hope for the best. How will you be affected? Well, you don't really know how you body will react to the toxins until it happens. Several factors determine how your body will react including your level of exposure, the type of chemical you ingest, and your individual resistance to the chemicals. Some people are unaffected or are mildly affected, while others become severely ill from similar levels of exposure. Some possible reactions are: Fatigue Fatigue Skin Irritations Nausea Vomiting Breathing Problems Brain Disorders Blood Disorders Liver & Kidney Damage Reproductive Damage Cancer Death Additional Resources Pesticides, www.cape.ca/children/neuro6.html Organic Farming as Productive as Conventional, The Daily Green, www.thedailygreen.com/environmental-news/latest/organic-farming-47032606?click=main_sr How to Eliminate Toxins from Pesticides It's a good idea to grow your own produce. Growing your own crops means that you can use healthful methods to control any pests. There are all-natural remedies for controlling pests and enriching soil. Or you can use organic pesticides. The threat of illness from pesticides can be minimized with a few actions taken. It's a good idea to keep your skin and face covered when you are in close proximity of pesticides use. If growing your own crops is not an option, shop healthy. Visit your local farmer's markets for the freshest organically grown foods. At your local grocery store, look for organic food products. Since awareness is being raised, more people are paying attention to what they're eating, as are the store managers. More and more stores are working to accommodate this new healthier appetite by providing consumers with the organically grown products they want. There are certain produce items which contain the highest levels of pesticides. Avoiding these crops can reduce your pesticides consumption levels by as much as 90%. Some of these items are friut like cherries, apples, peaches, pears and grapes. Vegetables you could avoid are celery, spinach and sweet bell peppers. Remember, if they are organically grown, then these are safe to eat. RESOURCES: Pesticides, Wikipedia, http://en.wikipedia.org/wiki/Pesticides, section entitled "The public" Ibid Ibid

pesticide stores in the fat deposits in your body and causes damage

Pesticides are used to kill the crop invaders. These pesticides are sprayed on the crops where they remain. These crops are sold to the public and used in the production of animal feed and other byproducts.

The crops are the same ones we buy at market to eat. The bugs are gone but the chemicals are not. We are ingesting these chemicals which were used to kill living organisms. These chemicals reach the colon and remain there, making the colon toxic and slowly poisoning the body.  

the website 

http://www.globalhealingcenter.com/effects-of-pesticides/pesticides is quite useful

Type of pesticides

Types of Pesticides.                                                               Target pest group

• Algicides or Algaecides                                                Algae
• Avicides                                                                      Birds
• Bactericides                                                                 Bacteria
• Fungicides                                                                   Fungi and Oomycetes
• Insecticides                                                                 Insects
• Miticides or Acaricides                                                Mites
• Molliscicides                                                               Snails
• Nematicicdes                                                              Nematodes
• rodenticides                                                                Rodents

   

Pictures

here are some pesticide cans

Pesticides

Pesticides are chemical compounds that are used to kill pests, including insects, rodents, fungi and unwanted plants (weeds). Pesticides are used in public health to kill vectors of disease, such as mosquitoes and in agricultures, to kill pests that damage crops. By their nature, pesticides are potentially toxic to other organisms, including humans, and need to be used safely and disposed of properly.

Who's at Risk for Exposure to Pesticides?

Who's at Risk for Exposure to Pesticides?

Farmers and their families and other persons who use chemical pesticides regularly are at greatest risk for achieving toxic levels in their bodies. The danger is spread out to larger areas, as the pesticides:

• Are carried on the wind
• Leave residues on produce
• Remain inside produce and animals
• Run off into open water, contaminating public water supply as well as fish and other seafood

Anyone who uses pesticides or is present when pesticides are sprayed is at risk for dangerous exposure. The pesticides can enter the body through skin, eyes, mouth and nose.

The greatest risk to our environment and our health comes from .....

The greatest risk to our environment and our health comes from the chemical pesticides. In spite of the dangers, the government maintains its approval of the use of toxic chemicals to make pesticides. And science is constantly developing variations of poisons.
Two classes are broad-spectrum and narrow-spectrum pesticides. Broad-spectrum pesticides kill many kinds of pests, while narrow-spectrum pesticides do just the opposite. Narrow-spectrum pesticides are developed to kill specific organism types. Examples are algicides for algai, avicides for birds, fungicides for fungi and oomycetes (also called water molds, they use surface water including preciptiation on plants, to move around). Most pesticides kill pests directly on contact. Systemic pesticides work differently. They penetrate to the inside of a plant traveling along its absorption path. These poisons work by poisoning the pollen and nectar of flowers and this can kill needed pollinators like butterflies and bees.

Bactericides -­ These destroy, suppress or prevent the spread of bacteria. Examples are swimming pool chemicals containing chlorine, and products used to control black spot (bacterial blight) on garden plants or in orchards. Household disinfectants and some industrial disinfectants are excluded and not considered pesticides.
Baits -­ These may be 'ready to use' products or products which need to be mixed with a food to control a pest. This category includes baits prepared for the control of large animals, such as foxes, wild dogs and rabbits, and baits for insects (such as cockroaches and ants) and molluscs (snail and slug pellets).
Fungicides -­ These control, destroy, make harmless or regulate the effect of a fungus. Examples include chemicals used to treat Grey mould on grape vines and fruit trees, or Downy Mildew on cucumbers.
Genetically Modified Organisms (GMOs) - Agricultural crops can be genetically modified to make them more resistant to pests and diseases, or tolerant to certain herbicides. For example, a gene from the bacterium Bacillus thuringiensis can be incorporated into cotton to provide protection against the larval stages of the cotton bollworm and native bollworm.
GMOs are regulated by the Commonwealth Government through the Office of the Gene Technology Regulator (OGTR) under the provisions of the Gene Technology Act 2000. Where a genetically modified product is determined to be a pesticide, it is subject to an assessment and registration process in accordance with APVMA requirements.
Herbicides -­ These destroy, suppress or prevent the spread of a weed or other unwanted vegetation, for example, the herbicide glyphosate is used to control a range of weeds in home gardens, bushland and agricultural situations.
Insecticides -­ These destroy, suppress, stupefy, inhibit the feeding of, or prevent infestations or attacks by, an insect. Insecticides are used to control a wide variety of insect pests, including thrips, aphids, moths, fruit flies and locusts. In NSW, pesticides include products such as flea powders and liquids used externally on animals. Injections or other medicines administered internally to treat animals are veterinary medicines and are regulated by the NSW Department of Primary Industries under the Stock Medicines Act 1989.
Lures -­ These are chemicals that attract a pest to a pesticide for the purpose of its destruction. Solely food-based lures, for example cheese in a mousetrap, are excluded and are not considered pesticides.
Rodenticides -­ These are chemicals used specifically for controlling rodents such as mice and rats.
Repellents -­ These repel rather than destroy a pest. Included in this category are personal insect repellents used to repel biting insects.
A number of living organisms that can control pests have also been registered as pesticides. Rabbit Haemorrhagic Disease, for example, has been used to control rabbit numbers; and bacteria that act as biological insecticides have been used to control various insect larvae, such as moths and mosquitoes.

Effects of Pesticides

Pesticides are designed to kill insects, fungus, bacteria and other things that feed on crops, are vectors for disease, nuisances, and things that destroy property. Farming is big business. And some of the farming companies are bottom–line entities in business to make money at any cost. Pesticides and genetically modified organisms are how they insure that they will get the crop yield they demand every season, no matter how it hurts the environment or the consumers. Two types of pesticides are biological and chemical. Biological pesticides can be developed using fungi, bacteria and other organically present substances. Some biological pesticides are microorganisms that, without any manipulation, demonstrate natural effectiveness in targeted pest control. These generally aren't toxic to humans or animals and don't leave a persistent residue.

what do pesticides do to the environment

The environmental impact of pesticides is often greater than what is intended by those who use them. Over 98% of sprayed insecticides and 95% of herbicides reach a destination other than their target species, including nontarget species, air, water, bottom sediments, and food. Though there can be benefits using pesticides, inappropriate use can counterproductively increase pest resistance and kill the natural enemies of pests. Many users are inadequately informed about potential short and long-term risks, and the necessary precautions in the correct application of such toxic chemicals are not always made. Pesticides can contaminate unintended land and water when they are sprayed aerially or allowed to run off fields, or when they escape from production sites and storage tanks or are inappropriately discarded.
The amount of pesticide that migrates from the intended application area is influenced by the particular chemical's properties: its propensity for binding to soil, its vapor pressure, its water solubility, and its resistance to being broken down over time. Factors in the soil, such as its texture, its ability to retain water, and the amount of organic matter contained in it, also affect the amount of pesticide that will leave the area.^[ Some pesticides contribute to global warming and the depletion of the ozone layer.

websites that may help

here they are

http://www.environment.nsw.gov.au/pesticides/pestwhatrhow.htm
en.wikipedia.org/wiki/Pesticide
blogs.scientificamerican.com/.../common-pesticide-disturbs-the-brain
www.alanwood.net/pesticides/
hope these help you guys

What are pesticides?

A pesticide is any substance or mixture of substances used to destroy, suppress or alter the life cycle of any pest. A pesticide can be a naturally derived or synthetically produced substance. A pesticide can also be an organism, for example, the bacterium Bacillus thuringiensis which is used to control a number of insect pests, or even a genetically modified crop (see Bollgard II cotton). The legal definition of a pesticide in NSW covers a wide range of substances.

Pesticides include bactericides, baits, fungicides, herbicides, insecticides, lures, rodenticides and repellents. They are used in commercial, domestic, urban and rural environments.
There are currently thousands of pesticide products registered for use in NSW by the Australian Pesticides and Veterinary Medicines Authority (APVMA).

Type of pesticides

Algicides, Advicides, Bactoeeicides, Fungicides, insecticides, Miticides, Acaricides, Molluscides, Nematicides, rodenticides and virucides

Pesicides

Pesticides are chemicals designed to kill a variety of pests such as insects (insecticides), unwanted plants or weeds (herbicides), fungi (fungicides) and rodents (rodenticides). Products used to kill bacteria and viruses are also classified as pesticides. These include disinfectants, cleansers, bleaches, toilet bowl cleaner, and mould and mildew remover.

how much pesticide is in our food?

Every year the Government’s Pesticide Residues Committee (PRC) tests a small proportion
of the food sold in our shops for pesticide residues.  Since 1998 around 100 different types
of pesticide residue have been found in the various fruit and vegetables tested.  The
Government sets legal limits on the levels of these pesticides that can be present in food -
the Maximum Residue Level (MRL) - see box below for more information.  In 2001, 1.5 per
cent of fruit and vegetables tested had pesticide residues that exceeded the MRLs

Wow - check this out guys

Invisible Monsters (pesticides)

go to npic.orst.edu it is a very good website

Pesticides

Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest. A pesticide is generally a chemical or biological agent (such as a virus, bacterium, antimicrobial or disinfectant) that through its effect deters, incapacitates, kills or otherwise discourages pests. Target pests can include insects, plant pathogens, weeds, molluscs, birds, mammals, fish, nematodes (roundworms), and microbes that destroy property, cause nuisance, spread disease or are vectors for disease. Although there are human benefits to the use of pesticides, some also have drawbacks, such as potential toxicity to humans and other animals. According to the Stockholm Convention on Persistent Organic Pollutants, 9 of the 12 most dangerous and persistent organic chemicals are pesticides. Pesticides are categorized into four main substituent chemicals: herbicides; fungicides; insecticides and bactericides.

This is what could happen with Pesticide

Pesticides are used to control organisms that are considered to be harmful.^[11] For example, they are used to kill mosquitoes that can transmit potentially deadly diseases like West Nile virus, yellow fever, and malaria. They can also kill bees, wasps or ants that can cause allergic reactions. Insecticides can protect animals from illnesses that can be caused by parasites such as fleas.^[11] Pesticides can prevent sickness in humans that could be caused by moldy food or diseased produce. Herbicides can be used to clear roadside weeds, trees and brush. They can also kill invasive weeds that may cause environmental damage. Herbicides are commonly applied in ponds and lakes to control algae and plants such as water grasses that can interfere with activities like swimming and fishing and cause the water to look or smell unpleasant.^[12] Uncontrolled pests such as termites and mould can damage structures such as houses.^[11] Pesticides are used in grocery stores and food storage facilities to manage rodents and insects that infest food such as grain. Each use of a pesticide carries some associated risk. Proper pesticide use decreases these associated risks to a level deemed acceptable by pesticide regulatory agencies such as the United States Environmental Protection Agency (EPA) and the Pest Management Regulatory Agency (PMRA) of Canada.

Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest.^[1] A pesticide is generally a chemical or biological agent (such as a virus, bacterium, antimicrobial or disinfectant) that through its effect deters, incapacitates, kills or otherwise discourages pests. Target pests can include insects, plant pathogens, weeds, molluscs, birds,mammals, fish, nematodes (roundworms), and microbes that destroy property, cause nuisance, spread disease or are vectors for disease. Although there are human benefits to the use of pesticides, some also have drawbacks, such as potential toxicity to humans and other animals. According to the Stockholm Convention on Persistent Organic Pollutants, 9 of the 12 most dangerous and persistentorganic chemicals are pesticides. Pesticides are categorized into four main substituent chemicals: herbicides; fungicides; insecticides and bactericides.

What Are Pesticides Used For?

Pesticides are a group of chemical solutions which include insecticides, fungicides, disinfectants, and herbicides and which are designed to kill, deter or get rid of unwanted pests – whether they be of animal or plant origin.The pesticide industry is huge – with 140,000 tonnes being used a year and a quarter of all vegetables, fruits, and cereal crops containing residues of two or more pesticides.
and they are used for For keeping insects away from plants

hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi

http://upload.wikimedia.org/wikipedia/commons/5/5e/Cropduster_spraying_pesticides.jpg

Spraying Pesticides

Wikipedia is a really good site to go on. It tells you who gets affected.

effects of pesticide

pesticide is designed to kill insects fungus bacteria and other things that feed on our crops. there are two types of pesticide biological and chemical.

NZ pesticide in food

Here is a good article about pesticide effect on NZ food. http://www.nzherald.co.nz/nz/news/article.cfm?c_id=1&objectid=10661868

The environmental impact of pesticides is often greater than what is intended by those who use them. Over 98% of sprayed insecticides and 95% of herbicides reach a destination other than their target species, including nontarget species, air, water, bottom sediments, and food.^[1] Though there can be benefits using pesticides, inappropriate use can counterproductively increase pest resistance and kill the natural enemies of pests. Many users are inadequately informed about potential short and long-term risks, and the necessary precautions in the correct application of such toxic chemicals are not always made.^[2] Pesticides can contaminate unintended land and water when they are sprayed aerially or allowed to run off fields, or when they escape from production sites and storage tanks or are inappropriately discarded.^[3]

The amount of pesticide that migrates from the intended application area is influenced by the particular chemical's properties: its propensity for binding to soil, its vapor pressure, its water solubility, and its resistance to being broken down over time.^[4] Factors in the soil, such as its texture, its ability to retain water, and the amount of organic matter contained in it, also affect the amount of pesticide that will leave the area.^[4] Some pesticides contribute to global warming and the depletion of the ozone layer.^[5]

Awesome work pesticide group!! Keep finding new information and posting your ideas

woooooo i am awesome yeah and kayomi why did u put rox at the end why just why

hi i am peanutbuttersayeftime yeah woooooooooooooooooo

what is are pesticide

A pesticide is a chemical used to prevent, destroy, or repel pests. Pests can be insects, mice and other animals, weeds, fungi, or microorganisms such as bacteria and viruses. Some examples of pests are termites causing damage to our homes, dandelions in the lawn, and fleas on our dogs and cats. Pesticides also are used to kill organisms that can cause diseases.
Most pesticides contain chemicals that can be harmful to people, animals, or the environment. For this reason the Office of Pesticide Programs of the Environmental Protection Agency regulates pesticides in the United States to protect public health and the environment.

the environmental impact of pesticide is a lot greater then intended by the people who use it.

Pesticides are substances or mixture of substances intended for preventing, destroying, repelling or mitigating any pest. A pesticide is generally a chemical or biological agent (such as a virus, bacterium, antimicrobial or disinfectant) that through its effect deters, incapacitates, kills or otherwise discourages pests. Target pests can include insects, plant pathogens, weeds, molluscs, birds,mammals, fish, nematodes (roundworms), and microbes that destroy property, cause nuisance, spread disease or are vectors for disease. Although there are human benefits to the use of pesticides, some also have drawbacks, such as potential toxicity to humans and other animals. According to the Stockholm Convention on Persistent Organic Pollutants, 9 of the 12 most dangerous and persistentorganic chemicals are pesticides. Pesticides are categorized into four main substituent chemicals: herbicides; fungicides; insecticides and bactericides.

Some evidence shows that alternatives to pesticides can be equally effective as the use of chemicals. For example, Sweden has halved its use of pesticides with hardly any reduction in crops.[18] In Indonesia, farmers have reduced pesticide use on rice fields by 65% and experienced a 15% crop increase.[18] A study of Maize fields in northern Florida found that the application of composted yard waste with high carbon to nitrogen ratio to agricultural fields was highly effective at reducing the population of plant-parasitic nematodes and increasing crop yield, with yield increases ranging from 10% to 212%; the observed effects were long-term, often not appearing until the third season of the study.[40] However, pesticide resistance is increasing. In the 1940s, U.S. farmers lost only 7% of their crops to pests. Since the 1980s, loss has increased to 13%, even though more pesticides are being used. Between 500 and 1,000 insect and weed species have developed pesticide resistance since 1945.[45]

hi every one my name is kayomi rox

A pesticide is a chemical used to prevent, destroy, or repel pests. Pests can be insects, mice and other animals, weeds, fungi, or microorganisms such as bacteria and viruses. Some examples of pests are termites causing damage to our homes, dandelions in the lawn, and fleas on our dogs and cats. Pesticides also are used to kill organisms that can cause diseases.
Most pesticides contain chemicals that can be harmful to people, animals, or the environment. For this reason the Office of Pesticide Programs of the Environmental Protection Agency regulates pesticides in the United States to protect public health and the environment.

uhttp://extension.umd.edu/publications/pdfs/fs652.pdf

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hi my name is sky poke hi every one

Hi Everyone
Im rayleigh

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Pesticides are really dangerous, animals may be killed by eating infected grass.

You guys have seen the damage FIRST HAND that pesticides can do to our crops and plants...and who eats these??

WE DO!