The Giant huntsman spider is huge, but not deadly to humans. Biggest in the world, the Giant Huntsman Spider was just recently discovered in 2001 in a Cave in Laos.
Because of reduced competition from other trees, it tends to thrive in barren soil containing too much sand, gravel, or clay. Growth and development of young trees is rapid, and their longevity can extend to 50-100 years. Siberian Elm is resistant to Dutch Elm disease, which is often fatal to other elms. It is prone to storm damage from wind, snow, and ice (especially the latter), causing breakage of branches and twigs that can litter the ground underneath the tree.
Rosendahl, 1955, noted that some Siberian elm plantings in the Upper Midwest were unsuccessful because seed was collected in climatically different geographical areas of the species range and had varying levels of winter hardiness. Siberian elm may become weedy and require removal. Pests and Potential Problems Siberian elm is resistant to Dutch elm disease and phloem necrosis and has been used to breed resistance into elm hybrids (Dirr, 1990). Leaf damage from elm leaf beetle has been noted in the south. (Ibid.) Environmental Concerns