Article: Q & A: Ragweed season starts today.

Byline: Terry Rindfleisch

Aug. 15--Q: Why does the season officially start today?

A: Ragweed's clock is in nature. Aug. 15 is the official opening with just the right amount of diminishing daylight and increasing night length to stimulate the plant to pollinate, said George Fulford, a physician assistant with Allergy Associates in La Crosse. The season peaks the last two weeks of August, and ragweed is gone by Sept. 15, Fulford said. "It's hard to feel in mid-September that ragweed has gone away because the symptoms can drag on forever," he said.

Q: What is ragweed?

A: It is a weed (41 species worldwide) that grows most commonly in the U.S. in the Eastern ...

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