Pesticides - Definition, Examples, Types, FAQs

What is Pesticides?

Pesticides meaning: Pesticides are chemical substances that are intended to kill insects. Generally, an insecticide is a chemical or agent such as a virus, bacterial, antimicrobial, or disinfectant that prevents, ineffective, kills, insects. The use of pesticides is a very common term that this term is often treated in the same way as the plant protection method.It is often used to control or control various agricultural pests that can damage crops and livestock and reduce farm productivity. The most widely used pesticides are insecticides, herbicides, weed control rodents and fungicides to control fungi, fungi and fungus.

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A Brief History of pesticides

Pesticides are not the latest inventions! Many ancient societies used pesticides to protect their pesticides for plants from pests and insects. The ancient Sumerians used basic sulfur to protect their names of pesticides for plants from pests. During the period, medieval farmers experimented with chemicals using arsenic, leading to conventional crops. The Chinese use arsenic and mercury compounds to control lice and other insects. Meanwhile, in the nineteenth century, researchers focused on natural techniques that included combinations made from the roots of tropical vegetables and chrysanthemums.

In 1939, Dichloro-Diphenyl-Trichloroethane (DDT) was discovered, and it is now widely used and widely used as a chemical pesticides in the world. However, two decades later, due to biological effects and human safety, DDT is banned in nearly 86 countries. Any object or mixture of substances used to prevent and destroy any pest, including vectors of human disease ,animal disease, unwanted species of natural pesticides for plants and animals, causing temporary or permanent damage or disrupting the production, processing, storage, transport or marketing of food, agricultural products , wood and timber products or animal feed, or items that can be given to animals to control insects, arachnids, or other insects in their body or body.

Types of pesticides

This is organized by the types of pests that kill themselves:

Collected By Types Of Insects That Kill Them

Insecticides - insects

Herbicides - plants

Rodenticides - mice (mice and rats)

Bactericides - germs

Fungicides - molds

Larvicides - larvae

Depending on how they are rotten Pesticides can also be considered:

1.Decaying rot:

Decaying species are those that can be separated from bacteria and other organisms into harmless substances.

2.persistence:

While persistent it is what can take months or years to break down.

One way to differentiate these is to consider those that are chemical types or derived from a common source or method of production.

Chemical-related pesticides:

1.Organophosphate:

Most of the organophosphates are insecticides, and they affect the nervous system by disrupting an enzyme that regulates the neurotransmitter of humans.

2.Carbamate:

Like organophosphorus pesticides, carbamate pesticides also affect the nervous system by disrupting the neurotransmitter-regulating enzyme. However, the effects of the enzyme are often reversed.

3.Organochlorine insecticides:

They were widely used in the past, but now many countries have removed Organochlorine pesticides from their market because of their health and environmental effects and persistence (e.g., DDT, chlordane, and toxaphene).

4.Pyrethroid:

They are designed in such a way that they increase their environmental stability.

5.Sulfonylurea herbicides:

Sulfonylureas herbicides are marketed for weed control such as pyrithiobac-sodium, cyclosulfamuron, bispyribac-sodium, terbacil, sulfometuron-methyl Sulfosulfuron, rimsulfuron, pyrazosulfuron-ethyl, imazosulfuron, nicosulfuron oxas, oxas-sulfas , ethoxysulfuron, chlorimuron-ethyl, bensulfuron-methyl, azimsulfuron and amidosulfuron.

6.Biopesticides examples:

Biopesticides are specific types of pesticides found in natural pesticides substances such as animals, plants, bacteria and certain minerals.

Fungicides,Herbicides and Insecticides are some of the pesticides examples of Pesticides

PEST full form:

Political,Economical,Social and Technological factors

Benefits of pesticides

The great advantage of pesticides is that they can save farmers. By protecting plants from insects and other insects. However, below are some of its key benefits.

Pest control chemicals and vascular disease.

Control of human/animal disease and pests and pathogens.

Controlling substances that damage other human activities and structures.

Effects of Pesticides

These toxic chemicals are designed to be deliberately released from the environment. Although each pesticides is designed to kill a particular pest, a very large percentage of the pesticides reach elsewhere without their purpose. Instead, they get into the air, water, soil, and end up with our food. Pesticides have been linked to health risks, ranging from short-term side effects such as headaches and nausea to chronic side effects such as cancer, birth defects. The use of this also reduces the normal variability in the soil. In the absence of chemicals in the soil there is a higher amount of soil, and this allows for higher water retention, which is necessary for the plants to grow

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What are Biopesticides?

Biopesticides are specific types of pesticides found in natural pesticides substances such as animals, plants, bacteria and certain minerals. For example, canola oil and baking soda have the use of pesticides and are considered biopesticides.

Biopesticides classes

Biopesticides fall into three major categories:

1. Chemical Pesticides.

Chemical pesticides are natural phenomena that control insects in a non-toxic way. The most common pesticides, on the other hand, are usually synthetic materials that directly or indirectly kill the pest. Chemical pesticides include insect-borne pathogens, such as insect-borne pheromones, and the release of various fragrant plants that attract traps.

2. Microbial Pesticides.

Active ingredient in a microbial pesticides is an microorganism

Infectious pesticides can control many types of insects, although each active ingredient is very different from its own insecticide. For example, there are fungi that control certain weeds and other fungi that kill certain insects.

The most widely used pesticides are subspecies and species Bacillus thuringiensis, or Bt.

While some Bt ingredients control moth worms found in plants, some Bt ingredients are designed for fly and mosquito larvae.

3. Plant Incorporated Protectants (PIPs).

Plant-Incorporated-Protectants (PIPs) are plant-based pesticides that have been added to the plant.

For example, scientists can take a gene for the Bt protein that kills pesticides and then introduce the gene into plant genes. Then the plant, instead of the Bt bacteria, does something that kills the insect. Proteins and their genes, but not the plant itself, are regulated by the EPA.

Benefits of using biopesticides

Biopesticides are generally more toxic than conventional pesticides. Biopesticides usually only affect targeted insects and closely related organisms, in contrast to the wide range, common pesticides that can affect organisms such as birds, insects and mammals. Biopesticides usually work in very small amounts and tend to decompose quickly, resulting in lower exposure and more avoidance of pollution problems caused by conventional pesticides.

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NCERT Chemistry Notes:

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