What is weed in crop production?

weed, general term for any plant growing where it is not wanted. Ever since humans first attempted the cultivation of plants, they have had to fight the invasion by weeds into areas chosen for crops. Other cultivated plants, when transplanted to new climates, escaped cultivation and became weeds or invasive species.

What is an example of weed?

Weed species are either broadleaf or grassy type. A few examples of broadleaf weeds are clover, dandelion, and purslane. Some examples of grassy type weeds are nutsedge, pampas grass, and bermuda grass. Weeds can be further divided into annuals, biennials, and perennials.

What do you mean by weed?

noun. a valueless plant growing wild, especially one that grows on cultivated ground to the exclusion or injury of the desired crop. any undesirable or troublesome plant, especially one that grows profusely where it is not wanted: The vacant lot was covered with weeds.

What is a garden weed?

Weeds are simply plants that are growing where they are not wanted. They are generally plants that are fast growing and thrive in most types of soil. Early spring is the best time to make a start on weed control in the garden.

What does weed do to plants?

The bad news for other plants in your yard is that weeds compete for nutrients in the soil and sunlight, which can lead to stunted growth for your vegetables, flowers and lawn. On a similar note, weeds also take up space, which can make it harder for gardens to flourish.

Is grass a weed?

The categorisation of a plant as a weed has no botanical significance. A weed is basically any kind of plant growing where you do not want it. Important grain crops like wheat, barley or rye are grasses. We would not normally think of them as weeds.

Is weed an invasive species?

Weeds (whether introduced or native) are usually considered only a localized problem rather than a landscape-level ecological problem. A plant species is considered invasive if it is non-native to the ecosystem under consideration and likely to cause economic or environmental harm, or harm to human health.

Is bindweed a weed?

Bindweed is a perennial weed that can become a persistent problem in gardens. There are two types: hedge bindweed and field bindweed. The most familiar and problematic bindweed is hedge bindweed, Calystegia sepium, which is fast-growing with slender, twining stems and large white trumpet flowers.