In a follow up to her very successful New York Times bestseller Wicked Plants, Amy Stewart tackles the insects, worms, and spiders that have tormented humankind for centuries. With wit and style, Stewart will reveal some of her discoveries. Books will be available for purchase and signing. Fee $5 sponsoring member, $15 nonmember.  Offered by the Arnold Arboretum,  Roslindale Green and Clean and Wellesley College Friends of Horticulture, and held on Saturday, October 22 beginning at 2 pm, at Weld Hill, 1300 Centre Street in Boston.  Register at www.arboretum.harvard.edu.