Aerosol Seen Being Sprayed From Fourth Ave In Whangarei On April 29th

At about 8.50 am, an aircraft spraying a bright-white aerosol was seen from Fourth Ave, which is in the suburb of Woodhill, Whangarei.  It appeared to being sprayed in the Abbey Caves Rd area.   The aerosol, which is shown in the first two pictures, was seen being emitted from about 8.50 am until about 9.05 am.   Some other “clouds” seen, which are shown at the top of the third photo, bore a similar appearance to the aerosol trail, suggesting that they emanated from the same or a similar source.