What Are The Four Major Classes Of Pesticides?

What are the four classes of pesticides?

Pesticides can be grouped according to the types of pests which they kill:Insecticides – insects.Herbicides – plants.Rodenticides – rodents (rats and mice)Bactericides – bacteria.Fungicides – fungi.Larvicides – larvae..

What are the types of insecticides?

There are three different types of insecticides: systemic insecticides, contact insecticides, and ingested insecticides. All are either natural (organic), man-made (synthetic) formulas, or preparations that are used to control or kill unwanted insects.

How do pesticides kill?

Systemic insecticides kill insects when they eat the plant and ingest the insecticide chemical. … Organochlorine compounds work on insects by opening what’s known as the sodium ion channel in the neurons or nerve cells of insects, causing them to fire spontaneously. The insect will go into spasms and eventually die.

What are the appliances used to spray pesticides?

Spray application. One of the most common forms of pesticide application, especially in conventional agriculture, is the use of mechanical sprayers. Hydraulic sprayers consists of a tank, a pump, a lance (for single nozzles) or boom, and a nozzle (or multiple nozzles).

Where do pesticides come from?

Since before 2000 BC, humans have utilized pesticides to protect their crops. The first known pesticide was elemental sulfur dusting used in ancient Sumer about 4,500 years ago in ancient Mesopotamia. The Rigveda, which is about 4,000 years old, mentions the use of poisonous plants for pest control.

What is the most harmful pesticide?

A volatile and toxic pesticide called 1,3-D (short for 1,3-Dichloropropene) is one of the most heavily used pesticides in California. Also known as Telone, the chemical is actually a gas, or a fumigant in pesticide speak.

What pesticides are used around your home?

In addition to the active ingredient, pesticides are also made up of ingredients that are used to carry the active agent….Pesticides used in and around the home include products to control:insects (insecticides)termites (termiticides)rodents (rodenticides)fungi (fungicides)microbes (disinfectants)

What is HCH?

Hexachlorocyclohexane (HCH), formally known as benzene hexachloride (BHC), is a synthetic chemical that exists in eight chemical forms called isomers. … However, imported γ-HCH is available in the United States for insecticide use as a dust, powder, liquid, or concentrate.

What is the full form of DDT?

Development of DDT DDT (dichloro-diphenyl-trichloroethane) was developed as the first of the modern synthetic insecticides in the 1940s. It was initially used with great effect to combat malaria, typhus, and the other insect-borne human diseases among both military and civilian populations.

What country uses the most pesticides?

ChinaPesticide Use by Country#CountryPesticide Use (tons)1China1,763,0002United States407,7793Brazil377,1764Argentina196,009119 more rows

What are the harmful effects of DDT?

Human health effects from DDT at low environmental doses are unknown. Following exposure to high doses, human symptoms can include vomiting, tremors or shakiness, and seizures. Laboratory animal studies showed effects on the liver and reproduction. DDT is considered a possible human carcinogen.

What is a pesticide and what are four different types?

A pesticide is any chemical which is used by man to control pests. The pests may be insects, plant diseases, fungi, weeds, nematodes, snails, slugs, etc. Therefore, insecticides, fungicides, herbicides, etc., are all types of pesticides.

Can pesticides kill viruses?

There are many different types of pesticides; each is meant to be effective against specific pests. Some examples include: Algaecides to kill and/or slowing the growth of algae. Antimicrobials to control germs and microbes such as bacteria and viruses.

What is difference between pesticides and insecticides?

What is the Difference Between Pesticides, Insecticides and Herbicides? Pesticides are chemicals that may be used to kill fungus, bacteria, insects, plant diseases, snails, slugs, or weeds among others. … Insecticides are a type of pesticide that is used to specifically target and kill insects.

Which is the best insecticide?

The 5 Best Insecticides​Monterey LG6135 Garden Insect Spray.Bonide (BND210) – All Seasons Horticultural and Dormant Spray Oil.​Southern Ag 10401 Natural Pyrethrin Concentrate (Our Top Pick)Garden Safe HG-93179 Neem Oil Extract Concentrate.More items…

What are the two main classifications of pesticides?

One traditional classification of pesticides places them in one of two groups: organic and inorganic. Organic pesticides are based on chemicals having carbon as the basis of their molecular structure.

What is the best systemic insecticide?

Some of the common house and garden insecticides that are systemic include acephate (Orthene®), imidacloprid (Bayer’s Tree & Shrub Insect Control™, Merit®) and dinotefuran (Greenlight Tree and Shrub Insect Control™, Safari®).

What are the most common pesticides?

Introduced by Dow Chemical in 1965, chlorpyrifos is the most widely-used pesticide on crops, including corn, soybeans, broccoli, and apples, and is also widely used in non-agricultural settings like golf courses (Figure 1).

What do pesticides do to your body?

Pesticides and human health: Pesticides can cause short-term adverse health effects, called acute effects, as well as chronic adverse effects that can occur months or years after exposure. Examples of acute health effects include stinging eyes, rashes, blisters, blindness, nausea, dizziness, diarrhea and death.