This document discusses pesticides and insecticides used in agriculture. It defines pesticides as substances that kill pests and insecticides as a subclass of pesticides that kill insects. It describes how pesticides are commonly used by farmers and homeowners and provides a brief history of pesticide use. The document outlines different types of insecticides including organochlorines, organophosphates, and carbamates. It discusses the impacts of pesticide use on the environment, economy, and human health.
Any substance or mixture of substances, intended for preventing, destroying, or
mitigating any pest, or intended for use as a plant growth regulator, defoliant or
desiccant.
Any substance or mixture of substances, intended for preventing, destroying, or
mitigating any pest, or intended for use as a plant growth regulator, defoliant or
desiccant.
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. The Agricultural Health Study, an ongoing study of pesticide exposures in farm families, also posts results online. Other 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.
Insecticide
An insecticide is a substance used to kill insects. They
include ovicides and larvicides used against insect eggs and larvae, respectively. Insecticides are
used in agriculture, medicine, industry and by consumers. Insecticides are claimed to be a major
factor behind the increase in agricultural 20th century\'s productivity . Nearly all insecticides
have the potential to significantly alter ecosystems; many are toxic to humans; some concentrate
along the food chain.
Insecticides can be classified in two major groups: systemic insecticides, which have residual or
long term activity; and contact insecticides, which have no residual activity.
Furthermore, one can distinguish three types of insecticide. 1. Natural insecticides, such as
nicotine, pyrethrum and neem extracts, made by plants as defenses against insects. 2. Inorganic
insecticides, which are metals. 3. Organic insecticides, which are organic chemical compounds,
mostly working by contact.
The mode of action describes how the pesticide kills or inactivates a pest. It provides another
way of classifying insecticides. Mode of action is important in understanding whether an
insecticide will be toxic to unrelated species, such as fish, birds and mammals.
Insecticides are distinct from insect repellents, which do not kill.
activity
Systemic insecticides become incorporated and distributed systemically throughout the whole
plant. When insects feed on the plant, they ingest the insecticide. Systemic insecticides produced
by transgenic plants are called plant-incorporated protectants (PIPs). For instance, a gene that
codes for a specific Bacillus thuringiensis biocidal protein was introduced into corn and other
species. The plant manufactures the protein, which kills the insect when consumed .Contact
insecticides are toxic to insects upon direct contact. These can be inorganic insecticides, which
are metals and include arsenates, copper and fluorine compounds, which are less commonly
used, and the commonly used sulfur. Contact insecticides can be organic insecticides, i.e. organic
chemical compounds, synthetically produced, and comprising the largest numbers of pesticides
used today. Or they can be natural compounds like pyrethrum, neem oil etc. Contact insecticides
usually have no residual activity.
Efficacy can be related to the quality of pesticide application, with small droplets, such as
aerosols often improving performance.[4][better source needed]
Biological pesticides
Main article: Biopesticide
Many organic compounds are produced by plants for the purpose of defending the host plant
from predation. A trivial case is tree rosin, which is a natural insecticide. Specific, the production
of oleoresin by conifer species is a component of the defense response against insect attack and
fungal pathogen infection . Many fragrances, e.g. oil of wintergreen, are in fact antifeedants.
Four extracts of plants are in commercial use: pyrethrum, rotenone, neem oil, and various
essential oil.
Hazardous Effects of Pesticide Diazinon on Living Organismsijtsrd
One of the major goals of agriculture is to meet the increasing food demand of the growing population and as a result the use of pesticides enormously increases directly. Pesticides are chemical agents used to kill or control the growth of pests. Pesticides have their major role in agriculture on the other hand it also has negative impact on environment and non target organisms. They are classified on the basis of toxicity, target of pest, chemical composition, mode of action, mode of entry, etc. Most commonly they are classified as insecticides, herbicides, weedicides, and rodenticides. Diazinon is an organophosphorous pesticide majorly used in ornamental plants, lawns, fruits and vegetables to destroy pests and insects. Use of pesticides in agriculture results in higher yield, quality product and economic benefits to the farmers and consumers while uncontrolled use of pesticides leads to their bioaccumulation and magnification in the environment which pose hazardous effects to the human health. Neha Tyagi | Monika Bajpai "Hazardous Effects of Pesticide Diazinon on Living Organisms" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-4 , June 2021, URL: https://www.ijtsrd.compapers/ijtsrd42550.pdf Paper URL: https://www.ijtsrd.commedicine/other/42550/hazardous-effects-of-pesticide-diazinon-on-living-organisms/neha-tyagi
Pesticides
Any toxic substance used to kill Bacteria, fungi, or insects that cause economic damage to crop or ornamental plants or are dangerous to the health of domestic animals or humans. All pesticides interfere with normal metabolic processes in the pest organism and often are classified according to the type of organism they are intended to control. (See herbicide; insecticide; fungicide; Bactericide
Pest control Bangalore , pest control offerings bangalore. Pest manipulate, Pest control offerings, Bangalore, busybizz.com , Pest manage offerings in Bangalore - Get nice rate charges from Pest manipulate offerings in Bangalore, Bedbugs manage in Bangalore, Pest control in Bangalore.
This PPT describes about the
What is pesticides?
Uses of pesticides.
Manufacturing Process.
Classification of pesticides.
Prevention of Pesticides.
Benefits of pesticides.
Eco-pesticides.
MICROBIAL INSECTIDES...USES AND APPLICATIONS OF INSECTICIDESlokismicrobiology
Microbial insecticides are those microorganisms or their products that are capable of attacking and killing pest insects. This may be considered to be an aspect of biological control, but when one is dealing with the products of such microbes the control may be termed chemical.
Pesticides impact on environment & biopesticides.pptxRenuJangid3
A pesticides is a toxic chemical substance that are meant to control pests. They detain and eliminate certain pest populations including insects, rodents, fungi, weeds, and other animals.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
2. PESTICIDES
A pesticide is any substance or mixture of substances
intended for preventing, destroying, repelling, or
mitigating any pest.
PEST: Any organism that damages crops, injures or
irritates livestock or man, or reduces the fertility of
land.
Pesticide derived from Latin words pestis means
plague, cide means to kill.
3. INSECTICIDES
It is a sub class of pesticides.
A substance used to kill or destroy insects.
INSECT: Any small air-breathing arthropod of the
class Insecta, having a body divided into head, thorax,
and abdomen, three pairs of legs, and (in most species)
two pairs of wings.
Insecticide derived from Latin insectum means (animal
that has been) cut into sections and cide.
4. HOW ARE PESTICIDES USED?
Pesticides are used both at home and in private gardens
as well as by most farmers who, under pressure to
provide food at low prices often rely on pesticides to
maximize their harvest. The use of pesticides in
farming often relies on the fact that levels used to kill
insects are generally low enough not to affect humans.
5. HISTORY OF PESTICIDES
Before 2000 BC
4,500 Years ago Elemental Sulfur Dusting
4,000 years old use of poisonous plants for pest control is also mentioned in history.
15th Century Arsenic, Mercury, Lead
17th Century Nicotine sulfate
19th Century Pyrethrum and Rotenone
1950’s Arsenic based insecticides
Organochlorines such as DDT Organophosphates and Carbamates in
1975
Pyrethrin, a dominant insecticide now a days.
6. PROPERTIES OF PESTICIDES
Effective against pests
Stability
Toxicity
Affordable
Non-cumulative (No biomagnification)
Effects (Acute and Chronic)
7. CLASSIFICATION OF PESTICIDES
Pesticides can be classified on basis of:
Target organisms
Chemical structure
Physical state
Biological mechanism
But the most popular and preferable classification of
pesticides is based on Target Organisms.
8. CLASSIFICATION OF INSECTICIDES
Insecticides are primarily grouped into chemical
families.
Organochlorines: The organic hydrocarbon molecule
containing chlorine atoms. They operate by disrupting
the sodium/potassium balance of the nerve fiber,
forcing the nerve to transmit continuously. E.g DDT
(DichloroDiphenylTrichloroethane), Aldrin, Dieldrin.
9. Organophosphates and Carbamates have largely replaced organochlorines.
They operate through inhibiting the enzyme AcetylCholinEsterase (ACE),
allowing acetylcholine to transfer nerve impulses indefinitely and causing a
variety of symptoms such as weakness or paralysis.
Carbamates are organic compounds derived from carbamic acid
(NH2COOH).
Organophosphate is the general name for esters of phosphoric acid.
Examples include Parathion and Malathion. Due to their mechanism of
action, they had been used in WWII as nerve agents.
Organophosphates are quite toxic to vertebrates, and in some cases have
been replaced by less toxic carbamates, e.g Carbaryl and Aldicarb.
10. IMPACTS OF USE
1. On Environment:
Pesticide use raises a number of environmental
concerns. Over 98% of sprayed insecticides and
pesticides reach a destination other than their target
species, including non-target species, air, water and
soil.
Pesticide drift occurs when pesticides suspended in
the air as particles are carried by wind to other areas,
potentially contaminating them.
11. Pesticides are one of the major causes of:
Water pollution
Persistent organic pollutants thus contributing to soil
contamination.
Reduces biodiversity
Reduces nitrogen fixation
Pollinator decline
Destroys habitat especially for birds
Threatens endangered species
Pesticide resistance
12. 2. On Economy:
The use of pesticides not only effect the environment but
also the economy of the country. The different costs for
pesticides include:
Developmental costs
Testing and evaluation of new product
Public health issues and awareness programs
Bird and crop losses
Groundwater contamination
13. EFFECTS OF PESTICIDES ON HUMAN
The wide variety of pesticides in common use means they
will affect a broad cross section of people differently. The
amount of common pesticides used on the fruits and
vegetables commonly consumed are supposed to be within
government standards, but often the people who harvest
and consume them hardly get food completely free of such
chemicals.
Common pesticide side effects include:
endocrine system failure,
infertility,