EEB-201 - Golden Rod Galls

GoldenrodGallFlyLarva.jpg
GoldenrodGallFlyLarva.jpg

EEB-201 - Golden Rod Galls

7.45

Each 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 mostly galls from the previous summer. Depending on exactly when they were collected the distribution of galls representing different stages in the gall fly / parasite / predator cycle will vary. Early galls will not show much bird predation. Galls collected and frozen before late spring will not have pupae. Subject to availability example specimens of bird predation and escape holes are provided.

photo attribution: SriMesh

 

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Package Insert: EEB-201