Sentences with phrase «as ragweed»

The pollen production peaks as ragweed blooms after midsummer, and continues through to late summer.

Many of these allergies occur seasonally, such as ragweed, cedar, and grass pollens.

Environmental allergens (such as ragweed, pollens, grasses, trees, molds, etc) have long been suspected as being a major factor in flare - ups of canine seasonal allergic dermatitis (known as atopy).

Asthmatics Should Look for Fakegrances as Causes I don't want to downplay those good old - fashioned allergens such as ragweed and cats, but according to the Environmental Working Group, «Fragrance formulas are considered to be among the top five known allergens and can trigger asthma attacks.»

Toward the end of summer, pollen becomes a problem again, as the ragweed season kicks off in mid-August.

These results are similar to our other studies performed in other highly allergenic taxa such as ragweed but with more extreme outcomes and wider impacts.»

Not exact matches

It can also help to avoid mold and ragweed pollen by monitoring your local pollen counts and staying indoors as much as possible on days when pollen counts are high.

Itchy eyes and runny noses are rarely fatal, but the risk of allergen exposure is increasing as insects migrate north to newly hospitable land while oak, birch and ragweed disperse pollen more intensely and for longer stretches of the year.

«The problem is likely to increase in countries with an existing ragweed problem, such as in Hungary and the Balkans.

The control of ragweed is important for public health and as an adaptation strategy against the impacts of climate change.

A single giant ragweed plant can reduce the yield in an area holding 30 soybean plants by as much as half.

They are Ambrosia trifida, or giant ragweed — a plant as ugly as its name and as useless, well, as its cousin, common ragweed, A. artemisiifolia, a machine for sucking up water and spewing out highly allergenic pollen.

When you come into contact with an allergen — ragweed, for example — immunoglobulin E (IgE) specific to that allergen acts through its receptor on the mast cell, stimulating the mast cells and basophils to release mediators, such as histamine, that trigger an allergic response.

It's allergy season, and as if everyone wasn't sneezing and wheezing enough, now new research says that allergy attacks could increase with climate change as the notorious ragweed pollen spreads.

People who are allergic to plants of the Asteraceae family (aster, ragweed, and chrysanthemums), as well as mugwort pollen, should avoid taking any supplement that contains chamomile.

Emma poured boiling water into the wooden tub as her mother tied ragweed into a handkerchief, dropped it down into the water, stirred in her father's and brothers» blackened work shirts.

Most likely has underlying allergies, most likely inhalant / contact allergies known as canine atopy to molds, grasses, trees, pollens, dust mites, ragweed, etc..

Animals can be allergic to many things in the environment (such as pollens, grasses, ragweed), parasites (fleas and mosquitoes), or certain foods.

It can be many other things as well: the Fall allergens (ragweed, golden rod, etc) are just as bad (or worse for many dogs) as the Spring allergens.

For example, if your dog comes across rye grass or ragweed, and the dog's immune system views it as a threat, an allergic reaction occurs.

We think of spring as being the season where all of the allergens come out but Fall is bad for certain animals - there are many allergens that come out when it starts getting colder (ragweed, golden rod, etc).

These can be outdoor allergens like ragweed, grasses and pollens, as well as indoor irritants like mold, dust mites, cleaning chemicals and even fabrics like wool or cotton.

The itching produced by ragweed allergy is the same as that produced by oak pollen allergy.

In contrast, studies have shown that a large percentage of noxious weeds (such as crab grass, barn grass, ragweed, pampas grass, burrgrass, etc.) are C4 plants, which do not respond as strongly to increased CO2 levels as most crops, which are of the C3 variety.

As someone who is also concerned about the impact of ragweed on crops, Ziska states, «If you have more pollen, you have more seed production, and it's likely you will have even more seed the following year.»

The study demonstrated that the number of frost - free days, and a delay in the first autumn frost, has occurred since 1995 as a function of latitude, extending the ragweed pollen season into the fall, particularly for the more northern locations.

If so, then ragweed season length, already quite long in southern latitudes, should be expanding as you move north.

The potential influence of rising atmospheric carbon dioxide (CO2) on public health: pollen production of common ragweed as a test case.

What they found was that the ragweed season had indeed extended - for the more northerly study sites particularly - by as much as a month when compared to 1995.

However, Michele Oswald, owner of Extra Step Cleaning in Ballwin, Mo., says that if outside allergens are your triggers, such as pollen or ragweed, you might want to keep them shut.