Similar words: weed, weeds, weedy, tweed, weeded, weed out, seaweed, duckweed. Meaning: n. 1. widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity 2. any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma.
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1. Ragweed pioneers idle fields.
2. Ragweed causes runny noses and watery eyes.
3. However, people who are allergic to ragweed or daisy pollen can have a similar allergic reaction to echinacea.
4. The ragweed Ambrosia artemisiifolia, an alien invasive weed, can profoundly influence natural ecosystems, agriculture, and human health.
5. Methods Extract of artemisia pollen and ragweed pollen were prepared SDS-PAGE and Coomassis were used to analyze proteins.
6. The ragweed, Ambrosia artemisiifolia L. , is one of the most hazardous weed species distributed worldwide and causing serious damages to agricultural production and human health.
6. Sentencedict.com is a sentence dictionary, on which you can find nice sentences for a large number of words.
7. For 75 percent of those 35 million, ragweed is the primary allergen, he added.
8. Whether the trigger is pollen or ragweed, suffering during allergy season is no fun.
9. To suppress the spread of the ragweed, there have been a lot of studies on their chemical control, physical control, plant displacement and biological control.
10. At six to seven years old more than half of the children were evaluated for their sensitivity to common allergens such as dust mites, ragweed and cats.
11. In one study, accelerating spring's arrival by 30 days prompted a 54 percent increase in ragweed pollen production.
12. Tropical diseases such as malaria, dengue fever, and yellow fever are reaching temperate regions, and ragweed and poison ivy thrive in the hothouse world.
13. At Johns Hopkins School of Medicine's Asthma and Allergy Center, clinical director Peter Socrates Creticos is studying what is essentially a ragweed vaccine.
14. Huber, D. M. , Cheng, M. W. , and Winsor, B. A. 2005. Association of severe Corynespora root rot of soybean with glyphosate-killed giant ragweed. Phytopathology 95, S45.
15. A paper published in the Proceedings of the National Academy of Sciences reported that the ragweed pollen season in North America has been getting longer as the number of frost-free days increases.
16. Atopy was defined as a positive skin-prick test to mites, cat, Alternaria, Cladosporium, grass, birch, Parietaria, olive, or ragweed.
17. It's enough to make you grab a tissue: Minneapolis has tacked 16 days to the ragweed pollen season since 1995; LaCrosse,(Sentencedict.com) Wisc.
18. A comparative study on the morphological characteristic of stem, leaf, anthotaxy and involucrum of three kinds of ragweed weed—Ambrosia Artemisiifolia L.
19. Patients who demonstrated to severe rhinitis symptoms upon exposure to ragweed were admitted to the study.
20. The findings correlate with analysis last year by the National Wildlife Federation that found ragweed growth rates and pollen counts increased with global warming.
21. TOLAMBA is designed to target the underlying cause of seasonal allergic rhinitis caused by ragweed.
22. Conclusion Significant difference exists between the extract of artemisia pollen and ragweed pollen, with the former being more complicated.
23. The two grubby small boys with two-coloured hair who were digging among the ragweed in front yard.
24. Limit your outside activities if you are bothered by ragweed and mold.
25. The first year's weeds on the Michigan plot are annual flowering plants, followed by tougher perennials like crabgrass and ragweed.
26. Subjects received six doses of TOLAMBA over six weeks prior to the start of the 2006 ragweed season.
27. Objective To compare proteins in the extract of Artemisia pollen and ragweed pollen and to examine the existance of common antigen between the two types of pollens.