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CLu/ The University of Georgia J College of A Agricultural and Environmental Sciences Depar mon ofEntnmokgy January 27, 1999 Hansruedi Walter, President K—X Industries Inc. P,O.Box 180 Windsor,SC 29858 Dear Mr.Waiter, • We have recently completed our preliminary examination of termite penetration of FASWALL®, K-X Aggregate block. We allowed three different groups of subterranean termites free access to separate Pam diameter areas on the surface of a KeX Aggregate block Termites were confined on the 9-cm area using a pearl dish base fastened to the black with food grade silicone sealant. A 2-mm 0.0.),20-an length of tygon tubing led from the petd dish to a plastic box cOmalning1- 5,000 termites After a two-manth exposure period termites were removed from the block and me size of any holes found on the block measured.Holes were measured by placing a 1-mm diameter metal probe Into the hole,marking the probe on a Ins perpendicular to the outer wall of the block once the probe met resistance to further penetration (the end of the hole?),removing the probe,and then recording the distance from the mark to the end of the probe. Holes also were measured on three separate,randomly chosen 9-cm diameter areas on the same Nock that - n/ were not exposed to termites. The holes In the unexposed areas averaged 4.2e mm deep(N 32) and In the termite treatment areas 4.78 mm(N•32). The difference in the average depth of holes between treatments(termite and no termites)was not statistically significantly different Next,we applied, using a hand-held dusting apparatus, powdered fluorescent.pigment(DAVOLO Color Corp.—Blaze Orange)into the aforementioned holes. Then using a wood chisel and rubber mallet the holes were excavated until no more fluorescent pigment was observed. All excavations were conducted in a darkened room under UV light at 385-nm wavelength to more accurately observe the pigment. The average depth that pigment was found within the blocks was 12.3-mm (N= 17)for the no-termite treatment holes and 9.54mm(N•20)for the termite treatment holes. Again the difference in the average depth of holes between treatment was not statistically significantly different. Sincerely, Brian T.Forschler Assistant Professor 413 Biological Sciences Building • Athens, Georgia 30602.2603 • Telephone(706)542-2816 • Fax(706) 542-2279 An Yn Oouormnlry/Anirmative Action intitutiuu