Here are the exact New World Wispybloom Field locations where you can kill wasps to get rewards.
During New World Springtide Bloom event, you will have to go to Springtide Village and talk to Bloom Herald NPC. Herald will then give you a quest in which you will have to craft Wispy Spritz and then go to a Wispybloom Field in order to kill wasps.
However, if you don't know where you can find Wispybloom Fields, here is a guide to it.
New World Wispybloom Field Locations
You will find Wispybloom Field scattered at multiple places in Aeternum. You can locate them by opening the map and looking for flower icons.
Apart from this, you can just look up in the sky for a colorful circle for its location.
Once you are there, you will have to place Wispy Spritz and lure the wasps into its radius. Once you do it, the Wispy Spritz will explode and damage wasps. Repeat the process until the wasps die, and you can then collect rewards.