Check this page: https://en.wiki.ryzom.com/wiki/Silan_Guide/Harvest#The_Merry_Harv ester_.231
Last mission, Merry harvester #2. Just look for the purple Goo mounds by the Chorogoos and equip the phial in your hand and use on the mound. Not all of them are active, find the ones it works on.
Last mission, Merry harvester #2. Just look for the purple Goo mounds by the Chorogoos and equip the phial in your hand and use on the mound. Not all of them are active, find the ones it works on.