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XSGrowth Home Pesticides Introduction to Pesticides

Introduction to Pesticides

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A pesticide is a substance or mixture of substances used to kill a pest. A pesticide may be a chemical substance, biological agent (such as a virus or bacteria), antimicrobial, disinfectant or device used against any pest. Pests include insects, plant pathogens, weeds, mollusks, birds, mammals, fish, nematodes (roundworms) and microbes that compete with humans for food, destroy property, spread or are a vector for disease or cause a nuisance. Although there are benefits to the use of pesticides, there are also drawbacks, such as potential toxicity to humans and other animals.

 

Types of pesticides:

There are multiple ways of classifying pesticides.

Algicides or Algaecides for the control of algae
Avicides for the control of birds
Bactericides for the control of bacteria
Fungicides for the control of fungi and oomycetes
Herbicides for the control of weeds
Insecticides for the control of insects - these can be Ovicides (substances that kill eggs), Larvicides (substances that kill larvae) or Adulticides (substances that kill adult insects)
Miticides or Acaricides for the control of mites
Molluscicides for the control of slugs and snails
Nematicides for the control of nematodes
Rodenticides for the control of rodents
Virucides for the control of viruses (e.g. H5N1)
Pesticides can also be classed as synthetic pesticides or biological pesticides (biopesticides), although the distinction can sometimes blur.

Broad-spectrum pesticides are those that kill an array of species, while narrow-spectrum, or selective pesticides only kill a small group of species.

A systemic pesticide moves inside a plant following absorption by the plant. With insecticides and most fungicides, this movement is usually upward (through the xylem) and outward. Increased efficiency may be a result. Systemic insecticides which poison pollen and nectar in the flowers may kill needed pollinators such as bees.

Most pesticides work by poisoning pests.

Last Updated on Monday, 08 December 2008 06:29  

Newsflash

International Technological Achievements Award Conferred on Dr. M. P. Srivastava

Global consultant on plant health and former Director Planning & Head, Plant Pathology of Haryana Agricultural University, Prof. M.P. Srivastava has been bestowed upon with “International Technological Achievements Award” on February 9, 2014.

Photo: Dr M P Srivastava [Extreme R] receiving the award

The award was given in recognition of his internationally acclaimed contribution on Plant Healthcare Technology and its dissemination towards mitigating crop losses and promoting plant health clinic worldwide. The award instituted by EET CRS, was given to him by presenting a memento and Certificate of Excellence in a glittering function in Noida on 9th of February 2014. Dr Srivastava has shared his innovations in reducing crop losses and strengthening food security at several occasions in India and at International Congresses at Edinburgh 1998, New Zealand 2003, Beijing 2013.