The strawberry sap beetle, Stelidota geminata (Say), is a major pest of strawberries in the northeastern United States. Further knowledge of the migratory habits of this insect pest can enhance the effectiveness of pest management strategies. This nitidulid was shown to migrate from its overwintering sites to one of its primary reproductive sites, strawberry fields, in late May. The beetle population peaked in the third week in July, 1993 in the strawberry field and then gradually declined. In 1994, the peak, as well as the total population, was much greater than in 1993. Furthermore, S. geminata was concentrated in the transition areas surrounding the strawberry fields prior to the ripening of the fruit.
Williams, Roger N.; Ellis, M. Sean; Fickle, Dan S.; and Bloom, Scott T.
"A Migration Study of Stelidota Geminata (Coleoptera: Nitidulidae),"
The Great Lakes Entomologist, vol 29
Available at: https://scholar.valpo.edu/tgle/vol29/iss1/5