Flea Beetle – On Tatsoi
Q: What’s shotgunning my tatsoi? I’m trying to get an early start to the season. These are in a hoop house.
A: This looks like damage from flea beetles. They are common in summer gardens, particularly on eggplant.
It makes sense that they would be out early in a proected hoop house environment.
Spinosad (click for sources) should work to control them.