I believe I may have root-knot nematodes in my garden. I harvested my last beets today and made this photographic document.
Last fall, I painstakingly removed the grass in an area to make way for a vegetable garden. At that time, someone convinced me to use a tiller rather than turn the soil over by hand.
After a little research today I learned that a tablespoon of infested soil on a borrowed garden tiller can contain thousands of root-knot nematodes. This may or may not be what happened, but it is a possibility.
Anyone involved in a community garden should also take note: unclean, shared tools can be a way to invite nematodes into your garden.
The experts seem to agree that hygiene is your best defense. Clean your tools with bleach before moving to another garden patch.
Can anyone tell from the pictures whether or not these are in fact root-knot nematodes. If so, does anyone have any additional advice to offer?