[
UK
/ɹˈæɡwiːd/
]
[ US /ˈɹæˌɡwid/ ]
[ US /ˈɹæˌɡwid/ ]
NOUN
- any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
- widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity
How To Use ragweed In A Sentence
- It is wind-born pollen from plants that have inconspicuous flowers like wild grasses or ragweed that are the major causes of respiratory allergy.
- The product is labeled for application with other corn herbicides to improve residual control of broadleaf weeds, including lambsquarters, pigweed, common ragweed, Pennsylvania smartweed, and velvetleaf.
- A comparative study on the morphological characteristic of stem, leaf, anthotaxy and involucrum of three kinds of ragweed weed—Ambrosia Artemisiifolia L.
- Howeer, from the regional data, we gained important insights into solutions that would minimize the risk of enrolling a large number of patients who do not hae ragweed-specific disease.
- It may not control smartweed, giant ragweed, and fall panicum that are more than 4 to 6 inches tall.
- Early pre-plant treatments allow producers to burndown winter annuals including henbit and mustards and early summer annuals, including giant ragweed, common sunflower and lambsquarter.
- However, many wind pollinated flowers such as maple, oak, hickory, corn, and ragweed are visited by bees collecting pollen.
- What we won't see until next year, and for the next five-seven years, is the result of an abundance of annual weeds, such as foxtail, mustard and ragweed. Fort Frances Times Online -
- A mixture of glyphosate plus an herbicide will improve control of prickly lettuce, dandelion, marestail, giant and common ragweed, Pennsylvania smartweed, velvetleaf, mustard species, and other broadleaf weeds.
- It's used to get rid of dandelions, thistles and ragweed and it kills by causing abnormal cell growth that interrupts the movement of liquids and nutrients in the plant.