ALLERGIES
Here's an article from National Geographic showing recent findings that point to higher allergy issues as climate warms. I believe it. The combination of more heat and less rain can result in growth of certain grasses and weeds. Some weeds prevent other weeds from rapid growth, seed production and rapid spread while others slow the growth.
We started working the ground at Vermont Flower Farm and Gardens in about 2007 after installing fencing around the 4.3 acres. The pasture had been a cornfield in recent years and had just been reseeded with alfalfa and white clover. Being proximate to Route 2 also meant that traffic from all over North America was depositing weed seeds many of which we had never seen before. Wild chervil, hogweed, Queen Anne's Lace were early arrivals followed by Jimsonweed, Poison Parsnip and Wild Buttercup. All of these flourished right from the start.
Ragweed probably bothers 50% of the public in some way but in our home for example it's the tree pollen that's at issue: poplar, willow and white birch pollen, but tree pollen in general. I am fine but Alex has to take medicine during peak times.
If you read this paper you'll see the correlation between climate change, drought, and the incidence of new weeds. When I saw fireweed for the very first time in Vermont and knew that it was common in Alaska, I recognized the importance of understanding how weed seeds travel by wind, by people and unknowingly by commercial and public transportation. Drop us a note if you have spotted a special weed such as our very noxious wild buttercup, or you have seen other correlations between drought and special weed resurgence.
No comments:
Post a Comment