What are insecticides and classification?

Classification of insecticide

Based on the mode of action, it is classified as physical poisons, nerve poisons, respiratory poisons, protoplasmic poisons, general poisons, and chitin inhibitors. Based on toxicity, it is classified into four types: Extremely toxic – Colour: red, symbol: skull and poison, oral LD50: 1-50.

What are the major classifications of insecticides?

Insecticides can be classified into two major groups: systemic insecticides, which have residual or long term activity; and contact insecticides, which have no residual activity. The mode of action describes how the pesticide kills or inactivates a pest. It provides another way of classifying insecticides.

What are the 4 main modes of action of insecticides?


Brown (1951) has classified insecticides into five groups, based on mode of action: (l) physical poisons, (2) protoplasmic poisons, (3) respiratory poisons, (4) nerve poisons, and (5) poisons of a more general nature.

How are insecticides classified by how they enter the body?

This fact sheet is intended to explain what insecticides do in insects to cause toxicity and death (Table 1). Insecticides can be classified according to their mode of entry into the insect as 1) stomach poisons, 2) contact poisons, or 3) fumigants.

What are the 7 categories of pesticides?

Types of Pesticides
  • Insecticides – insects.
  • Herbicides – plants.
  • Rodenticides – rodents (rats & mice)
  • Bactericides – bacteria.
  • Fungicides – fungi.
  • Larvicides – larvae.

What are the five classes of insect pesticides?

Classification of pesticides are according to the types of pests they kill
  • Insecticides – Insects.
  • Herbicide – Plants.
  • Rodenticides – Rodents (rats & mice)
  • Bactericides – Bacteria.
  • Fungicides – Fungicide.
  • Larvicides – Larvae.

What is the function of insecticide?

Insecticides are chemicals used to control insects by killing them or preventing them from engaging in undesirable or destructive behaviors. They are classified based on their structure and mode of action.

What is the difference between contact and systemic insecticide?

Contact Contact pesticides control pests when they come in direct contact with the pest. Systemic Systemic pesticides, when applied to one area of a plant or animal, are transported throughout the plant or animal. They kill all pests which feed on or in that plant or animal.

What is the difference between insecticide and pesticide?

Insecticides are a type of pesticide that is used to specifically target and kill insects. Some insecticides include snail bait, ant killer, and wasp killer. Herbicides are used to kill undesirable plants or “weeds”. Some herbicides will kill all the plants they touch, while others are designed to target one species.

How many insecticides are there?

There are more than 1000 pesticides used around the world to ensure food is not damaged or destroyed by pests. Each pesticide has different properties and toxicological effects.

What is a group 4a insecticide?

Thiamethoxam is a systemic seed treatment insecticide belonging to the neonicotinoid class of chemistry. Thiamethoxam protects against listed chewing and sucking insects through contact and ingestion. Mefenoxam fungicide is active against Pythium, Phytophthora and systemic downy mildew.

What is a chemical class in insecticide?

Chemical class – Chemical classes to which pesticides may belong include organophosphates, neonicotinoids, pyrethroids, and many others. Within the general class of pesticides, subcategories are sometimes defined according to a common chemical characteristic or functional group.

What are insecticides give example?

Other examples of this series are BHC, lindane, Chlorobenzilate, methoxychlor, and the cyclodienes (which include aldrin, dieldrin, chlordane, heptachlor, and endrin).

What is a Class 3 insecticide?

Acute toxicity makes it possible to classify pesticides into five classes: class I – highly toxic, class II – toxic, class III – moderately toxic, class IV – slightly toxic, class V – virtually non-toxic.

What is a Group 22 insecticide?

Insecticide groups
Insecticide groupChemical groupExamples of Insecticides
Not a member of a groupNuclear polyhedrosis virus (NPV)Helicoverpa

What is cypermethrin used for?

Cypermethrin, one of a handful of light-stable synthetic pyrethroids, is registered to control cockroaches, fleas and other indoor pests at home, restaurants, hospitals, schools and food-processing plants. It is also used in agriculture to control cotton, fruit and vegetable pests.

What are the 4 categories of toxins?

The four toxicity categories, from one to four are:
  • Toxicity category I is Highly toxic and Severely irritating,
  • Toxicity category II is Moderately toxic and Moderately irritating,
  • Toxicity category III is Slightly toxic and Slightly irritating,
  • Toxicity category IV is Practically non-toxic and not an irritant.

What is a Class 9 pesticide?

Class 9 pesticides are ingredients in products that cannot be used in, on or over land unless otherwise excepted. The cosmetic pesticides ban does not impact structural or water exterminations only land exterminations.

What is a Class 11 pesticide?

Class 10: Ingredients in pesticide products allowed for use under the public health or safety exception for controlling plants that are poisonous to the touch • Class 11: Full list of active ingredients that may be used under the Pesticide Act to control pests.

What are the 3 types of poison?

In regard to poisoning, chemicals can be divided into three broad groups: agricultural and industrial chemicals, drugs and health care products, and biological poisons—i.e., plant and animal sources. These three groups, along with a fourth category, radiation, are discussed below.

What are the 3 types of toxicity?

Types of toxicity

There are generally three types of toxic entities; chemical, biological, and physical. Chemicals include inorganic substances such as lead, hydrofluoric acid, and chlorine gas, organic compounds such as methyl alcohol, most medications, and poisons from living things.

What are the 4 color bands of pesticides?

Toxicity labels viz; red label, yellow label, blue label and green label are mandatory labels employed on pesticide containers in India identifying the level of toxicity (that is, the toxicity class) of the contained pesticide. The schemes follows from the Insecticides Act of 1968 and the Insecticides Rules of 1971.

What are the two classes of poison?

Class A poisons are highly toxic and can be lethal even in very small dosages. Class B poisons are less toxic, but still considered to be dangerous for humans.