On April 28, 1999, approximately 1130 mountain daylight time, a Weatherly 201-C, N9095W, was substantially damaged during landing roll near Two Buttes, Colorado. The commercial pilot, the sole occupant in the airplane, was not injured. The airplane was owned by the pilot and operated by TAT, Inc., as an agricultural flight under Title 14 CFR Part 137. Visual meteorological conditions prevailed for the aerial application flight which originated approximately 40 minutes before the accident. No flight plan had been filed. The pilot said that during the landing roll on a dirt county road, the left main tire hit something and "blew out." The airplane veered left, encountered a ditch, and rotated perpendicular to the road. The left main landing gear broke off, and the left wing and the bottom of the fuselage were damaged.