One of the best-known organochlorines is given as DDT, which was created by the Swiss scientist named "Paul Müller." He was awarded the 1948 Nobel Prize for Medicine or Physiology for this discovery, and it was introduced in 1944. Some important Synthetic and natural insecticides are listed below. Several major insecticides are inspired by biological analogues, where many others are not found in nature. Insecticides can also represent a main area of emphasis. Synthetic Insecticides and Natural InsecticidesĪ major organic chemistry's emphasis is given to developing chemical tools to enhance agriculture's productivity. Insecticides Classification based on Their Chemical Natureĭepending on the chemical nature, the insecticides are classified into 4 groups, which are listed below: In general, the household insect spray works like a contact insecticide because it must directly hit the insect. These types of insecticides act as bullets that aim only at a specific target to kill the insects with the help of its application. It then forms a layer on the plant surface area and will act as a poison to any insect that comes to chew the plants.Ī few examples of the ingested pesticides type can be given as roaches and rats. Once the insecticide enters the roots, it moves to the external areas such as fruits, leaves, branches, and twigs. Moreover, it is for the soil to get absorbed by the roots of plants. This type of insecticide has been introduced into the soil. There exist 3 different types of insecticides. Highly toxic – Symbol: poison, Color: yellow, oral LD50: 51 – 500,Įxtremely toxic – Symbol: skull and poison, Color: red, oral LD50: 1-50 Moderately toxic – Symbol: danger, Color: blue, oral LD50: 501 – 5000, Less toxic – Symbol: caution, Color: green, oral LD50: >5000 The mode of action can be classified into various poisons such as nerve poisons, physical poisons, protoplasmic poisons, respiratory poisons, chitin inhibitors, and general poisons.ĭepending on the mode of entry in insects, it can be classified into fumigant poisons, contact poisons, systemic poisons, and stomach poisons.ĭepending on the specificity stage, it can be classified as pupicides, ovicides, adulticides, and larvicides.ĭepending on the toxicity level, it can be classified into 4 types, as listed below: Let us look at the classification of insecticide in detail.ĭepending on the chemical composition, it can be classified into 2 types - organic and inorganic. As they spread in the food chain, a few insecticides become concentrated. ![]() They also have the potential to alter the components of the ecosystem primarily, and they are toxic to animals and humans as well. Insecticides consist of a wide application in various fields such as agriculture, medicine, and industrials. The substances that can be used to kill insects are referred to as insecticides. Some insecticides are banned in different regions of the country after the discovery of harmful effects on our environment. There are various insecticides and pesticides available in the market under the name of various brands. Such types of chemicals are known as insecticide. These chemicals can be natural or artificial that can stop the growth of such insects in the crop field, animal houses or even inside our homes. So in order to prevent these mishappenings to occurring, we use various kinds of chemicals. Several diseases are also caused due to them which becomes a financial burden. ![]() They also affect the livestock of farmers that we raise as a source of food products. Insects are notoriously known to destroy the crops that we create and affect the agricultural and economic system of our society. Or sometimes they can directly affect the health of our body or the environment surrounding us. This is the diversity of nature but as humans what we are worried about is their conflict with us for the access to natural resources for our survival. They are also sometimes parasites that stay associated with their hosts for their survival. It can be either a herbivore consuming on materials available from plant source or can be a predator hunting down other smaller insects. Like any other living being they also need food for their survival and are always searching for it. Though all of them play a role in the balance of nature as we experience it, from the context of humans they can be either beneficial, harmful, or neutral. They are a very essential creation of nature that can be found in all the habitable regions of earth. The population of insects is estimated to be a lot more than all the big creatures that we can see easily.
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