The pilot reported that the left wing contacted crops at the side of the runway at low speed during the landing roll. This caused the aircraft to swing to the left and the right main landing gear to collapse. The occupants were uninjured and able to vacate the aircraft unaided. The pilot assessed that he may have landed too far to the left of the runway centreline.
Operations from unlicensed aerodromes and private strips require special consideration; in this case crops were growing close to the edge of the runway. CAA Safety Sense Leaflet 12 - Strip Sense, notes that approximately one third of general aviation reportable accidents in the UK occur during takeoff or landing at unlicensed aerodromes. The leaflet contains useful safety information for pilots intending to operate from such locations.