36 C
Lagos
Monday, February 24, 2020
Advertisement

Insecticides: Definition, Uses and Health Risk

Featured

How to Increase Blood Platelet Count Naturally?

Ever wondered why do some people bleed more than the others when it comes to a normal bruising? It all depends on the clotting...

Whole Lemon Juice Helps Weight Loss: a Personal Account

First off let me make some things clear, I am not over weight. I also have zero interest in fad diets. So all I...

How to Get Rid of Stretch Marks Naturally?

The appearance of stretch marks is a general thing most women suffer from especially after pregnancy; it occurs due to sudden weight gain or...

Top 7 Beard Trends for 2019

Whether you are male or female, one thing everyone cares about regardless of age and sex is hair health and hairstyles. But these days,...

4 Types of Injuries That Qualify for Personal Injury Compensation

An accident is a scary and painful thing, especially when it happens to you. Accidents can happen anywhere; at home, in the mall, on...

Detailed Guidelines Before Acquiring an Electric Cigarette

In a pub around the table a group of friends sits in Manchester, exchanging their own tale and placing the world to rights in...

EECP Therapy: Noninvasive, Outpatient Treatment for Heart Disease

Heart disease is an exceedingly common condition with serious effects on health and quality of life. Characterized by damage or malfunction of the vessels,...

Reasons Why You Should Wear Hair Extensions

Whether you just got a haircut that you deeply regret or you just need to include some thickness or volume to your hair, hair...

Vertigo: Causes, Symptoms and Treatments

The ear is a vital organ as it does much more than the hearing function. The ear is responsible for balance and can be...

Nigeria: Zamfara Has No Case of Lassa Fever – Commissioner

The Zamfara government has said that the north-western state has no case of Lassa fever. Its health commissioner, Mr Yahaya Kanoma, told the News Agency...
Avatar
Victor Anunobi
Victor Anunobi is an environmentalist, writer and movie enthusiast living in the city of Lagos, Nigeria. He enjoys long walks, food and alternative music.

Insecticides are toxic substances used to kill insects. They are used in agriculture, industries like tanning and carpentry, medicine, and by household consumers.

Advertisement

Insecticides have increased agricultural productivity since the last century. Prior to this, farmers employed the use of chemicals like sulfur, arsenic and led to get rid of insects on farmlands.

Insecticides have the potential to damage ecosystems. Extensive use of insecticides has been associated with many problems. Although they may kill target insects, they are also capable of killing useful insects like bees.

Insects can, over time, develop resistance to insecticides. They are also toxic to humans and animals –hence, their use has been strictly regulated, although this is not so in developing countries.

Insecticides are classified into two groups. These are;

  • Contact insecticides which have no residual activity and are not persistent
  • Systemic insecticides which are persistent and have long term activity.

Insecticides can also be classified as;

  • Natural insecticides such as neem and nicotine made by plants as a defense against insects.
  • Organic insecticides such as organochlorides, organophosphates, carbamides, and pyrethroids
  • Inorganic insecticides made from metals

Some insecticides work by damaging the nervous system, while others work by damaging their exoskeletons, or drive them away. They can be packaged in various forms like sprays, dusts, gels, and baits.

Uses of Insecticides

  • Insecticides are used to control and kill insects and arthropods that may damage agricultural produce.
  • They are also useful for controlling and killing vectors of diseases like mosquitoes that may affect human life.

Dangers of Insecticides

One of the major problems of using insecticides is environmental contamination and the eventual development of resistant insect species. Insects are toxic substances that could affect not just the target insect species but also useful insects.

Bioaccumulation of certain insecticides in the environment can pose a serious danger to both humans and wildlife. Although many insecticides are short-lived in the environment, some remain persistent and are ingested by animals, mainly when applied in large amounts.

Insecticides may leach through the soil and affect groundwater –thus contaminating it. Suspended particulates matter from sprayed insecticide application may pass off as drift, pollute the air, and affects air quality. This could cause eye and skin irritation in humans.

Advertisement

DDT, dieldrin, and aldrin are chlorinated hydrocarbons that could easily contaminate the soil. Through the repeated application, these chemicals can accumulate in the soil in large amounts, affecting wildlife and increasing up the food chain.

They persist in the fatty tissues of animals as they go up the food chain, and showing toxic effects later. Birds of prey such as hawks, eagles, and falcons are the most affected.

The declining populations of these birds have been traced to the hazardous effects of DDT and its related chemicals. It is for this reason that these chemicals have been restricted and eventually banned in many countries.

There have been reported cases of human poisoning by insecticides. In fact, the use of parathion, one of the most common organophosphates in the United States, was reduced owing to its toxic effects on farm laborers who came in direct contact with it.

Additionally, the tendency for target insect species to develop resistance to insecticides is another major problem.

These resistance populations survive insecticide application and multiply, eventually forming the majority of the insect population. Resistance means an insect population is no longer susceptible to the effects of insecticides.

Insecticides also encourage the growth of harmful insect species by killing off natural insect predators of insects.

For example, ladybirds, wasps, and beetles are the natural enemies of aphids –an insect pest of food crops. Insecticide application eliminates these natural predators and encourages the growth of aphid populations.

Integrated Pest Management

Due to the problems associated with the intensive use of some chemical insecticides, the current practice of insect-control combines their use with biological methods in an approach known as integrated control.

This approach combines minimal use of insecticide by the following ways:

Advertisement
  •  The use of pest-resistant crop varieties.
  • The use of crop-raising methods that inhibit the growth of insect pest populations.
  • The disruption of the pest’s reproductive cycle by the release of sterilized pests.
  • The release of natural predators or parasites of the pest species.

More articles

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Trending now

Eating Vaginal Discharge and It’s Health Benefits

For many people, vaginal discharge is a sign that a woman is ready and willing to have sex. Vaginal fluid is a whitish fluid...

Genital Warts: Do They Go Away Naturally? What to Expect?

Human Papilloma Virus is the causative organism for genital warts. The virus is available in various strains, and it can be contacted by many...

Kinky Sex Punishment Ideas You Should Try

Is your submissive being a spoilt little brat? Are you noticing some unwanted behaviour? Do not be dismayed. Sometimes subs can be naughty, and...

Coronavirus – Facts, Types and Symptoms

Coronaviruses are a type of virus that mainly affects the respiratory tract of humans and other mammals. These viruses are associated with pneumonia, common...

Anklet Charms and Hot Wives What Do They Mean?

Women all over the world love to accessorise. From putting on necklaces to wearing makeup and buying the latest trending clothes, women are ready...

How to Increase Appetite in Children Naturally?

Poor appetite is the leading cause of malnutrition in children; every child pass through this phase at a point in their lives, others make...

Photos of Women’s Orgasm Faces Show True Female Desire Is Nothing Like Porn

A photographer has captured women’s faces before, during and after they orgasm to lift the lid on real female sexuality. Brazilian photographer Marcos Alberti said...

7 Standing Sex Positions

Sex is more appealing when you do it in various ways and in many different places altogether. The best way to achieve his is...

Skin Rashes: Causes, Symptoms and Effective Home Remedies

Skin rashes are common skin problems experienced by millions of people worldwide; it is characterized by a visible change in the color and texture...

Is Zobo Drink Healthy for Pregnant Women?

Zobo drink is a popular drink in Nigeria and it is loved by many; this common drink is made with hibiscus flower and it...

Friends