A
ragweed plant is a type of weed that produces pollen, which can cause allergies for some people during the fall season.
Full definition
The research team investigated the potential impacts of climate change
on ragweed plant distribution, plant productivity, pollen production and dispersal, and the resulting allergy impacts across Europe.
A single
giant ragweed plant can reduce the yield in an area holding 30 soybean plants by as much as half.
And soybean yield was reduced by 95 % in 2015 and 80 % in 2016 when
common ragweed plants were grown only three inches apart in the soybean row.
Ziska has studied plants and pollen in test plots and carbon dioxide chambers, but this study was the first continental - scale measurement of the effects of climate warming
on ragweed plants.
One
ragweed plant every 1.6 feet of soybean row decreased soybean yield by 76 % in 2015, and by 40 % in 2016.
Butterbur is in
the ragweed plant family, so people who are allergic to ragweed, marigold, daisy, or chrysanthemum should not use butterbur.