Well, after the day we transplanted the cabbage seedlings, the flea beetles already shot numerous holes in it before I had a chance to put on the floating cover. Then the slug moves in. May be I should wait until the cabbage seedlings are larger before transplanting.
On the other hand, I put row cover on the pok choy seeds but the flea beetles still find a way in. I guess I have to put boards or stakes around the edge of the cover to seal it. However, I think it could be the eggs from last year’s beetles are hatcing in the soil. Sterilizing the soil might be a solution. Hopefully we can still have something left 🙁