I have a raised vegetable garden and planted a number of vegetables about a month ago (they were in 3 or 4-inch pots, ready to be transplanted - i.e. not from seeds). In the past week or two, I've noticed a weird substance on some of them - black kale and brussel sprouts in particular. I've attached a photo, but the best I can describe it is that they look like small greyish/white sesame seeds. Maybe eggs of some insect? But they're very soft - if you touch them at all, it's almost like touching ashes from a fire or something.
My questions are probably pretty typical:
- What are they?
- I'm not touching anything with them, but is it ok to wash and eat the leaves that look fine (only a few leaves per plant have them, and they are kind of sitting in the middle of the plant (where new leaves come up from) as well).
- How can I get rid of them?
I'm a very amateur gardener - if there's any other information I can provide, just let me know. Thank you!