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Onions, in particular, produce a sulfur product that acts as a lacrimator, or a substance that causes tearing: “This volatile chemical escapes from the damaged onion into the air, and lands in ...
The plant takes the form of a large tuft of onion-like rounded hollow leaves up to 30 centimeters (12 in) long. The inflorescence is a panicle with widely spaced flowers. Each flower is 5 to 12 millimeters wide with six tepals which are generally white or very pale pink with a neat central longitudinal stripe of brown to reddish-purple. The ...
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 domesticated plants and livestock, and in natural settings preventing non native species competing with native species.
Allium vineale (wild garlic, onion grass, crow garlic or stag's garlic) is a perennial, bulb-forming species of wild onion, native to Europe, northwestern Africa and the Middle East. [2] The species was introduced in Australia and North America , where it has become an Invasive species .
This mulch can prevent soil erosion, reduce weeding, conserve soil moisture, and increase temperature of the soil. [28] Ultimately this can reduce the amount of work a farmer may have to do, and the amount of herbicides applied during the growing period. The black and clear mulches capture sunlight and warm the soil increasing the growth rate.
"Onion weed" may refer to several species of plant that are either related to onions, have onion-like bulbs or flowers, or smell oniony or garlicky, and that are considered weeds outside their native ranges. These include: Allium neapolitanum, Neapolitan garlic. Allium triquetrum, three-cornered leek. Native to south-western Europe and north ...
Ajwain or ajowan (Trachyspermum ammi) [3] (/ ˈ æ dʒ ə w ɒ n /) —also known as ajowan caraway, thymol seeds, bishop's weed, or carom—is an annual herb in the family Apiaceae. [4] Both the leaves and the seed ‑like fruit (often mistakenly called seeds) of the plant are consumed by humans.
Oniongrass or onion grass may refer to: Wild or feral chives , garlic , or other species in the allium family, particularly Allium vineale , a common lawn weed. Several species in the genus Melica