Narrative:

Flying the ILS approach at ZZZ under hood with instructor safety pilot in copilot position. Aircraft position announcements were made on CTAF at multiple points while flying on the simulated ILS. The CTAF frequency was being monitored during the approach for potential conflicts.at approximately 350 feet AGL; the instructor safety pilot said something like 'I've got the airplane.' I looked up from under the hood and saw a yellow low-wing crop duster turning in front of us; landing! I added power; slowly retracted the flaps and declared on the CTAF that we were going around. At no point had the crop duster made a radio call on the CTAF frequency. Earlier in the day; as we were about to depart; I had seen one of the two crop duster aircraft land on the same runway without making a radio call. The crop dusters were landing approximately every 5 minutes or so and then taking off from mid-field after being filled with what is believed to be rice seed. They were refilling on field west of the runway using farm equipment that dumps into the aircraft. It appears that this is their standard method of operation. They were not flying a standard pattern and did not appear to be making any effort to 'blend in' with other aircraft operating in the standard pattern. Another pilot based at ZZZ stated something to the effect that; while on final approach; a crop duster landed in the opposite direction; again without making any radio calls.

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Original NASA ASRS Text

Title: GA pilot reported a NMAC with a crop dusting aircraft during approach to a non-towered airport. Reporter stated the crop dusting pilot had not been making any radio calls.

Narrative: Flying the ILS approach at ZZZ under hood with instructor safety pilot in copilot position. Aircraft position announcements were made on CTAF at multiple points while flying on the simulated ILS. The CTAF frequency was being monitored during the approach for potential conflicts.At approximately 350 feet AGL; the instructor safety pilot said something like 'I've got the airplane.' I looked up from under the hood and saw a yellow low-wing crop duster turning in front of us; landing! I added power; slowly retracted the flaps and declared on the CTAF that we were going around. At no point had the crop duster made a radio call on the CTAF frequency. Earlier in the day; as we were about to depart; I had seen one of the two crop duster aircraft land on the same runway without making a radio call. The crop dusters were landing approximately every 5 minutes or so and then taking off from mid-field after being filled with what is believed to be rice seed. They were refilling on field west of the runway using farm equipment that dumps into the aircraft. It appears that this is their standard method of operation. They were not flying a standard pattern and did not appear to be making any effort to 'blend in' with other aircraft operating in the standard pattern. Another pilot based at ZZZ stated something to the effect that; while on final approach; a crop duster landed in the opposite direction; again without making any radio calls.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.