nyc allergy male tree pollens

http://www.nytimes.com/2010/04/06/opinion/06ogren.html?scp=1&sq=allergy-free%20new%20york&st=cse This articles states that male pollens are the largest cause of allergy symptoms in the east. Male trees were mostly planted because of there resistance to disease and the neatness in cityes. The female trees add flowering debris to the cities sewer system. however this article failed to mention the role of oak beech and birch inAll of these trees are capable of contributing to nasal allergy, asthma and oral allergy syndrome. This article was informative about the botany of allergy. Arthur Lubitz M.D.FAAAAI