Once Sterner Aero was a significant operator of aircraft for pesticide control and fertilization in for the farming and forest business, not only within the borders of Sweden.
A previous employee remembers in a daily newspaper:
Om vintern kunde vi dra med stor besättning och 4-5 flygplan till Sudan och spruta mot gräshoppor. (Wintertime a large bunch of us migrated with 4-5 planes to Sudan to fight locusts"Company history from a "helicopter perspective":
http://www.nordicrotors.com/company/Sterner+Aero.
In the video I noted the Snow Commander SE-ENM: There may be others; I noted somewhere that the company has operated maybe 20 Snow Commanders and also Piper Pawnees and a Grumman type. and later also helicopters
https://lae.blogg.se/2014/december/snow ... ten-2.htmlsearch.php?keywords=se-enmSE-ENN can be seen here:
viewtopic.php?f=13&t=8035&p=29119&hilit=se+enn#p29119 Note that it was sold to Israel! (Together with a further 8.)
From a Swedish local newspaper:
https://www.dt.se/artikel/helikopterver ... n-borlange