Question

What do you mean by weeding? Is it necessary?

Answer 1

A weed is a plant that is considered to be an undesirable plant. Weeds are plants that are unwanted in human-influenced settings like farms, fields, gardens and lawns.

Complete Answer:
The term weed can be used interchangeably for any plant as a plant is considered to be a weed only if it is unwanted in that particular setting. The plant may have several uses in a setting where it is wanted. A plant that is considered a weed can be of the same genus as the plant of importance in that setting. Volunteer crops can be considered as weeds when they grow in a human-controlled setting. Volunteer crops are crops that grow without any external influence.
Weed control is a method of removing and prohibiting the growth of weeds in undesired settings. Weed control is also known as weeding. Weed control is used to mainly remove noxious weeds from the setting. These noxious weeds compete with the flora and fauna of the region and possibly damage them.
Methods for weed control include methods like:
1. Hand cultivation with the help of hoes
2. Using powerful cultivator machines
3. Applying mulch to the area
4. Using high heat for lethal wilting of the weeds
5. Burning the weeds
6. Using herbicides

Note:
Plants that grow aggressively in a setting and are considered to be an invasive species in that habitat are also called weeds. Some weeds are intentionally planted in settings. These weeds act as beneficial weeds.
Noxious weeds are weeds that have been deemed to be injurious to livestock, humans, desired crops or habitat.