People who have actually had to work with a shovel and 4 inches frozen mud caked on your Sorels know that Farm and construction machinery and the fuel to run them are wonderful things!
Will you deep trench your leeks? or do you use the 2 boards method? :)
I made my driveway with a 1969 Sear Suburban garden tractor that has a grader blade attachment. Also pushed up some pretty big piles of brush/branches with the snow plow blade.
Then I graduated to a little 18hp Mitsubishi tractor with PTO and lift arms. I built a draw bar and forks for the back and use the forks a lot. I keep anything I can outside on pallets. I built a trailer the same width as the tractor for hauling firewood out of the woods. At 42 inches wide, it will go anywhere in the woods. Tractor has been a major back and labor saver. Even the Sears Suburban was a labor saver.
Would love to have a 25/26hp Kubota with loader/backhoe but I don’t have $35k to spare.
It is already being used in Europe under the label Nemaslug. I have not found any US sources so I do not know if it is approved for U.S. I suppose the U.S. agricultural concern is that wipes out Aquatic water dwelling snails.
https://today.oregonstate.edu/news/microscopic-worm-liquefies-slugs-may-be-answer-controlling-invasive-pest
https://theconversation.com/why-zombie-slugs-could-be-the-answer-to-gardeners-woes-94348
https://en.wikipedia.org/wiki/Phasmarhabditis_hermaphrodita