Which of the following statements about pesticides is true
Which of the following are pesticides?
Introduction
| Pesticide | Used Against |
|---|---|
| Fungicide | Fungi |
| Herbicide | Weeds |
| Insecticides | Insects and related animals such as spiders, millipedes and centipedes |
| Molluscicides | Snails and slugs |
Which of the following statements about pesticides and herbicides are not true?
The statement about pesticides and herbicides that is not true is: B) Once the pesticides and herbicides break down, they are no longer harmful. In fact, they remain harmful long after they break down.
Why are pesticides used quizlet?
A chemical or agent used to destroy rats or other rodent pests, or to prevent them from damaging food, crops, etc. Kills plants with broad leaves.
Which of the following is a result of using pesticides?
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.
Which of the following is considered to be pesticide labeling?
Which of the following is considered to be pesticide labeling? The federal Worker Protection Standard.
Are Degradates harmless?
Degradates, unlike their parent compounds, are always completely harmless.
What are the positive effects of pesticides?
Benefits of Pesticides
By controlling insects and rodents, pesticides prevent the spread of disease and protect buildings from termite infestations. Pesticides also keep the price of clothing and food down by eliminating predators that would destroy crops, raising the cost of things like corn and cotton.
What are the effects of pesticides on the environment?
Impact on environment
Pesticides can contaminate soil, water, turf, and other vegetation. In addition to killing insects or weeds, pesticides can be toxic to a host of other organisms including birds, fish, beneficial insects, and non-target plants.
What is herbicides and pesticides?
Herbicides are normally designed to eliminate or control specific type of pests. Pesticide is generally used to eliminate or repel pests of all types, including insects and occasionally plants. Herbicides come in two forms: selective or non-selective.
What are advantages and disadvantages of pesticides?
Top 10 Pesticide Pros & Cons – Summary List
| Pesticide Pros | Pesticide Cons |
|---|---|
| Can help against parasites | Groundwater contamination |
| Using pesticides may lead to lower food prices | Can reduce populations of helpful insects |
| Fewer plants will be lost to pests | Pesticides may lead to pollination problems |
What are three benefits of using pesticides?
There are three main types of agricultural pesticides: Herbicides control weeds so that crops can flourish without unwanted plants competing for vital nutrients, space, water and sunlight. Fungicides protect plants from disease-causing organisms that can spread quickly and destroy fields of crops.
Are pesticides good or bad?
Not only are pesticides dangerous to the environment, but they are also hazardous to a person’s health. Pesticides are stored in your colon, where they slowly but surely poison the body. … Pesticides also have the potential to harm the nervous system, the reproductive system, and the endocrine system.
What are pesticides disadvantages?
On the other hand, the disadvantages to widespread pesticide use are significant. They include domestic animal contaminations and deaths, loss of natural antagonists to pests, pesticide resistance, Honeybee and pollination decline, losses to adjacent crops, fishery and bird losses, and contamination of groundwater.
How do pesticides benefit the environment?
How Do Pesticides Help the World? The short answer of why California farmers use pesticides is that they keep certain threats at bay, allowing more plants to continue growing as needed. … Finally, using pesticides can help prevent the spread of disease from pests.
Where are pesticides used?
Pesticides have a wide range of intended uses in agriculture (e.g. insecticides to prevent crop damage; fungicides to prevent plant disease), forestry, industry (e.g. material preservatives in paints or metal working fluids), and society (e.g. personal insect repellents).
How do pesticides affect animals?
These chemicals not only can eliminate wild animals, but can also disrupt hormones in animals, affecting behavior and the ability to reproduce. … Some persistent pesticides can build up in the bodies of animals, including humans. The natural enemies of pest insects can also be killed by pesticides.
Why do we use pesticides?
What are pesticides? Pesticides are chemical compounds that are used to eliminate pests, including insects, rodents, fungi and unwanted plants (weeds). … Pesticides are used in public health to eliminate vectors of disease, such as mosquitoes, and in agriculture to eliminate pests that damage crops.
What are pesticides?
Pesticide law defines a “pesticide” (with certain minor exceptions) as: Any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest. Any substance or mixture of substances intended for use as a plant regulator, defoliant, or desiccant.
What are agricultural pesticides?
Agricultural pesticides are then those chemicals that are used by farmers to prevent the effectivity of the pests on the growth and productivity of agricultural crops.
How pesticides are sprayed?
In spraying, the chemicals to be applied are dissolved or suspended in water or, less commonly, in an oil-based carrier. The mixture is then applied as a fine mist to plants, animals, soils, or products to be treated.
How do pesticides work?
Most pesticides work by affecting the nervous system of the insect. The pesticide interrupts the information being sent by neurotransmitters in the synapses. The chemical produced by the body used to send information through the synapses is called acetycholine.
What are herbicides used for?
Herbicides are chemicals used to manipulate or control undesirable vegetation. Herbicide application occurs most frequently in row-crop farming, where they are applied before or during planting to maximize crop productivity by minimizing other vegetation.
How do pesticides protect crops?
The cuticle, made up of a thin coating of wax on plant leaves, acts as a protective shield against attack from pests, prevents the loss of nutrients and water from the plant and is involved in transporting water and nutrients across the plant surface for plant growth.