What happened
During the takeoff roll, the airplane encountered a rise in the runway surface. The pilot was previously aware of this rise in the runway profile; however, the aircraft became airborne prematurely during the roll.
In an attempt to manage the situation, the pilot initiated the dumping of the chemical load and attempted to establish a climb. Despite these efforts, the aircraft collided with a tree located approximately 200 feet beyond the departure end of the runway. Following the collision, the airplane impacted the ground, at which point the right main landing gear was sheared off after the aircraft contacted a ditch. The impact caused the airplane to become inverted, and it was subsequently destroyed by a post-crash fire.
The pilot was not injured. During an interview with an FAA inspector, the pilot noted that he and the aircraft owner had intended to repair the runway and clear the trees at the end of the spraying season. The pilot also reported that there were no malfunctions or failures involving the engine or airframe prior to the impact.