This Massachusetts Horticultural Society class, to be held on Thursday, June 19, from 7 – 8:30 in the Parkman Room, Education Building, 900 Washington Street, Wellesley, will introduce you to the biology and control of common invasive plants.  Learn how to time organic and chemical controls to manage your landscape. The class will be conducted by Bruce Wenning, Ecological Landscaping Alliance.  $10 Mass Hort members, $15 non-members.  More information may be found at www.masshort.org.