Talk:Ulmus parvifolia

Disease?

My mother's Chinese Elm is already losing its leaves (which normally occurs late September) and has 3/4" "lacerations" on the trunk and branches that have a sappy foam. Is this a disease? Js5071760 13:26, 8 August 2007 (UTC)

sound like spittle  Bug  — Preceding unsigned comment added by 70.168.132.93 (talk) 21:41, 16 February 2015 (UTC) 

Chinese Elms are Invasive

Ulmus parvifolia,common names:Chinese elm,lacebark elm This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Hoffman, R.and K. Kearns (eds.). 1997. Wisconsin manual of control recommendations for ecologically invasive plants. Wisconsin Dept. Natural Resources. Madison, Wisconsin. Mature Chinese Elms drop millions of tiny seed pods which can germinate in any landscape, creating thousands of weed like seedlings. If allowed to grow, they quickly take root and become very difficult to eradicate. The Invasive Plant Atlas of the united States, www.invasiveplantatlas.org reports Chinese Elm an invasive plant in several states including in Rock Creek National Park in Washington, DC. The U.S. Forest Service has featured it as a "Weed of the Week".https://www.ci.valparaiso.in.us/DocumentCenter/View/687/Chinese-Elm?bidId= "Researchers Link Chinese Elm Trees with Increased Fall Pollen Counts in Atlanta". The study, conducted collaboratively by Emory University and Atlanta Allergy & Asthma Clinics, is published online in the Annals of Allergy, Asthma & Immunology. https://news.emory.edu/stories/2016/09/jjm_allergy_fall_pollen_counts_and_chinese_elm_trees/index.html Silvercomet (talk) 01:46, 12 June 2019 (UTC)