Noxious weed
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A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural or other governing authority as a plant that is harmful to agricultural or horticultural crops, nat
A mature cotton thistle, an invasive weed in Australia
The alga Caulerpa taxifolia is a noxious marine weed nicknamed killer algae. This is a picture of it invading a native plant bed.
This is a parasitic noxious weed, Striga gesnerioides, commonly called Witchweed.
This is a terrestrial noxious weed, Drymaria arenarioides commonly called Lightning weed. It is sometimes confused with daisies.
Weed control
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Weed control is a type of pest control, which attempts to stop or reduce growth of weeds, especially noxious weeds, with the aim of reducing their competition with desired flora and fauna including do
A field of beets being weeded in Colorado, United States, in 1972
Tools used for amateur weeding include spades and gloves
Weeds are removed manually in large parts of India.
Weed control through tilling with hoes, circa 1930-40s