THE AG PILOT WAS REPORTEDLY SPRAYING COTTON WHEN THE ENGINE QUIT. UNABLE TO GLIDE TO THE CLOSEST AIRPORT, HE FORCE LANDED THE AIRPLANE IN A NEARBY FIELD, AND THE AIRPLANE COLLIDED WITH TREES ON THE LANDING ROLL. AN INSPECTION OF THE AIRPLANE REVEALED THAT THE AIRCRAFT FUEL SYSTEM WAS COMPLETELY VOID OF FUEL EXCEPT FOR THE WING TANKS. THE FUEL TANK FINGER SCREENS WERE CLEAR. TEARDOWN INSPECTION OF THE ENGINE AND COMPONENTS REVEALED NO EVIDENCE OF MECHANICAL MALFUNCTION OR FAILURE.