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(Thematic Report) Pesticides in Agriculture

by Kushal Naharki | 05-04-2020 18:40 recommendations 0 recommendations

Any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest. First use of synthetic pesticides were made on 1940. Pesticides have different distribution and persistence patterns in the environment, even if all of them are distributed in some way through air, soil and water. This should be addressed to gain an understanding of how acute and chronic exposure may occur because air, water and soil are the media of exposure.

A wide range of chemicals are used in global agriculture under the perception that they are fundamental to achieving maximum crop yields. There is, however, a growing knowledge base developing that underpins the distribution and impact of chemicals in the environment and how they affect the human body. Furthermore, there is growing requirement for regulatory control and management procedures due to the specific challenges.

The chemicals used for current agriculture are overwhelmingly harmful to the environment it’s presented to. Not only do pesticides contaminate non-targeted plants outside of the crop range – for as far as a few hundred miles – but by contaminating the non-targeted plants, the animals and insects that ingest these plants are also contaminated and potentially harmed. Bees, specifically, are slowly dying because of this very problem. It’s absolutely vital that current agriculture alters the way that crops are taken care of with pesticides, as the areas contaminated and effected will only spread out more and more as the problem persists.

Four commonly used pesticides include:


·       Metam sodium

·       Methyl bromide

·       Telone II

·       Chloropicrin

Agricultural chemicals are classified as follows by application target.

A. Insecticides- Agents for controlling harmful insect pests that damage field crops.

B. Fungicides- Agents for controlling diseases that damage field crops.

C. Insect-fungicides- Agents that simultaneously control harmful insect pests and diseases that damage field crops.

D. Herbicides- Agents for controlling weeds

E. Rodenticides- Agents for controlling rats and other rodents

F. Plant growth regulators- Agents to promote or inhibit the growth of field crops.

G. Attractants- Agents that attract mainly harmful insect pests by odor or other means.

H. Repellents- Agents for having repellent action on harmful mammals and birds that damage field crops.

I. Spreaders- Agents that are mixed with other agricultural chemicals to enhance the adherence of these chemicals.

     Effects of using Pesticides in Agriculture

·       Development  of resistancy in  insect

·       Outbreak of pest

·       Hazard of pesticide residue

·       Environment Pollution

·       Phytotoxicity

·       Adverse effect on non-target organism

·       Resurgence of pest


Agricultural chemicals are agents or natural enemies that can affect organisms and the environment, if used incorrectly. One way of limiting the emission of pesticides into the environment and the exposure to humans is to produce organic products. Sensible use of pesticides should be taken into consideration along with their appropriate use, use during proper time, read the precautions and labeled on pesticides. The integrated pest management can be the best alternative to the use of pesticides in agriculture.








  • Nepal E-gen Ambassador Kushal Naharki


Kushal Naharki

Susmita Adhikari

  • Susmita Adhikari says :
    I hope you are doing well

    Thank you so much for this report
    Posted 23-04-2020 00:17

Kushal Naharki

  • Kushal Naharki says :
    Thank you for your comment Mentor
    Posted 08-04-2020 10:36

Sang Su Mentor

  • Sang Su Mentor says :
    Hi Kushal, this is a mentor Sang Su.

    As you mentioned in the last paragraph, it is indeed a dilemma for a human race whether to choose pesticide for better agricultural crop yield or to choose not to use pesticide for the environment. Although there are many organic pesticides existing in the world, I heard that they are not as effective as chemical pesticides (non-organic). I hope better technology would be developed to fight against this issue to produce minimum trade-offs.

    Thank you for your nice report.
    Posted 07-04-2020 15:57

Kushal Naharki

Sandhya Adhikari

  • Sandhya Adhikari says :
    Hello Kushal dai,
    I do hope you are fine there and doing great with your works,
    Pesticides create a hazardous impact on land as well as ecosystem and health of the living creature.
    Nowadays people think only of the monetary value rather than health,
    Due to rampant use of banned pesticides too, bio magnification and bio accumulation is taking place which should be minimized.

    Thanks for the report,

    Keep writing,

    Looking forward to read much more from you,


    Posted 07-04-2020 00:41

Kushal Naharki

Aida Daeichiyan karandi

Kushal Naharki

  • Kushal Naharki says :
    Thank you @Sandesh for your comment
    Posted 06-04-2020 10:58

Kushal Naharki

  • Kushal Naharki says :
    Thank you Taehyun mentor. Few of the pesticides are banned in most of the countries which have great side effects although many of them are still in use legally or illegally
    Posted 06-04-2020 10:58

Kushal Naharki

  • Kushal Naharki says :
    Thank you @Balkrishna bro
    Posted 06-04-2020 10:56

Taehyun Mentor

  • Taehyun Mentor says :
    Hello Kushal Naharki, greeting from mentor Taehyun.

    Thank you for a report about the pesticides! I didn't know that there are that many kinds of agricultural pesticides and all of them are harmful. Agricultural pesticides are now allowed in most of the country because of the convenience of the farmers. But is convenience is more important than the environment? I don't think so. Even though farmers to become harder and the crop's price is getting expensive, I hope more and more farms to use an organic farming way.

    Thank you for the report!

    Green cheers!
    Posted 06-04-2020 00:28

Bal krishna Pandey

  • Bal krishna Pandey says :
    thanks kushal for sharing your knowledge about pesticides, its types and effects in agriculture.
    Pesticides and its negative effects in agriculture and environment is one of the hot topic in the world.
    yes, integrated pest management is a great idea to reduce this problem.
    keep writing dear Brother
    Posted 06-04-2020 00:10

Kushal Naharki

  • Kushal Naharki says :
    Thanks for your view Rasul
    Posted 05-04-2020 23:11

Kushal Naharki

sandesh thapa

  • sandesh thapa says :
    Hello kushal,

    Pesticides have a potential role in agriculture but bioaccumulation is really a greatest problem especially chlorides. so there should be proper way to minimize pesticide use.

    Thank you for sharing
    Posted 05-04-2020 23:09

Fahd Rasul

  • Fahd Rasul says :
    In fighting corona , a lot of chemicals are being used, lot of soap, detergents etc. All of these have potential to pollute underground aquifers. Water pumping from agricultural lands may pollute by the leached salts pumping again.
    Posted 05-04-2020 22:49

Anthony Duxell Malle

  • Anthony Duxell Malle says :
    Greetings Kushal Naharki ,
    I have really been enlightened by different Agricultural chemicals and their effects on the environment .Thanks for sharing.
    Posted 05-04-2020 21:21

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