Golden Rod Galls

Additional Product Information:
EEB-201 package insert.

Bag containing 50 goldenrod galls intended for use with CIBT laboratory activity "Goldenrod Gall Size as a Result of Natural Selection." Galls are collected during winter and spring and contain most galls from the previous summer. Depending on when they were collected the distribution of galls representing different stages in the gall fly / parasite / predator cycle will vary.