"Ragweed season" refers to the time of year when ragweed plants release pollen into the air, causing allergies in some people.
Full definition
If so,
then ragweed season length, already quite long in southern latitudes, should be expanding as you move north.
You take SLIT tablets daily before and during grass or
ragweed season.
Toward the end of summer, pollen becomes a problem again, as
the ragweed season kicks off in mid-August.
The ragweed season begins in late summer, but in some areas it can last well into October.
I'm sure that's what it is - it is
ragweed season, right?
For instance,
ragweed season has increased 13 to 27 days in northern US latitudes.
For example, for Winnipeg, Manitoba, and Saskatoon, Saskatchewan —
ragweed season was a whopping 25 and 27 days longer, respectively in 2009 than in 1995.
In the northern U.S. cities of Minneapolis, Minnesota, and Fargo, North Dakota,
ragweed season was 13 days longer in 2009.
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.