The third most prevalent soil unit, called Cedargap silt loam, is along the Danforth Spring branch and Pearson Creek and tends to be intermediate between the first two. The Gasconade unit is very limited and represents the steeper slopes of the Goss type soil. Control of these has been achieved in some cases with appropriate pesticides and fungicides, although pruning, thinning, hand-picking or passive observation has always been the first resort with use of chemicals only when it seems imperative. Icestorms are a major problem, especially for younger trees because the massive weight of the ice bends the trunks of such trees, and often it is necessary to straighten them. Also limb breakage by ice is problematic.
Recent recollection suggests a frequency of about one ice storm per two years.
In April 1998, the Lovett Pinetum completed the aquisition of a new unit about 3 miles west of Lufkin, in Angelina County, Texas. This 30 acre site has a caretaker's house and is composed of sandy loam soils typical typical of that supporting the great East Texas pine belt. The soils include Keltys fine sandy loam, Kurth fine sandy loam, and Alazan very fine sandy loam. This unit should provide the pinetum with a fairly full spectrum of the varying degrees of wetness in S.E. Texas soils. The hardiness zone is 8-b and the site is only about 60 miles north of the border of zone 8 and 9.