Walnut Trees

Trees May Make You SneezeTo carry on the wind, some tree pollen is particularly dry and light, so it blows easily through open windows, onto your car, your clothes and up your nose -- and may make you sneeze.
Tiny Pest Prompts Quarantine On Wood From Bucks CountyPennsylvania agriculture officials have issued a quarantine for wood from Bucks County after finding a tiny bug that presents a major threat to the state's black walnut trees.