Introduced Pine Sawfly Diprion similis (Hartig 1834)Adventive    
Kingdom Animalia   >   Phylum Arthropoda   >   Class Insecta   >   Order Hymenoptera   >   Family Diprionidae   >   Genus Diprion   

Status:

"Although a serious pest at times, it normally stunts rather than kills its hosts. It can be a more serious problem with young trees and in cases such as Christmas trees where appearance is important. It has natural enemies and diseases, so large outbreaks are only intermittently seen" (BugGuide).

Relationships:

"Hosts: pines (Pinus); 5-needled pines (Subg. Strobus) are preferred, but others may be infested as well" (BugGuide).

There are 8 records in the project database.

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An Introduced Pine Sawfly larva in Garrett Co., Maryland (7/8/2018). Verified by Ken Wolgemuth/BugGuide. Photo by Judy Gallagher. (MBP list)

An Introduced Pine Sawfly larva in Worcester Co., Maryland (6/7/2014). Verified by Ken Wolgemuth, Alexander Boldyrev, and Charley Eiseman via BugGuide. Photo by Scott Housten. (MBP list)

An Introduced Pine Sawfly in Calvert Co., Maryland (6/13/2019). Verified by Ken Wolgemuth, Alexander Boldyrev, and John F. Carr via BugGuide. Photo by Steve Scholnick. (MBP list)

Introduced Pine Sawfly in Garrett Co., Maryland (8/14/2019). (c) kathyfletchall, some rights reserved (CC BY-NC). Photo by kathyfletchall via iNaturalist. (MBP list)

Introduced Pine Sawfly in Garrett Co., Maryland (8/14/2019). (c) kathyfletchall, some rights reserved (CC BY-NC). Photo by kathyfletchall via iNaturalist. (MBP list)

Introduced Pine Sawfly in Montgomery Co., Maryland (6/4/2019). (c) bvoss, some rights reserved (CC BY-NC). Photo by bvoss via iNaturalist. (MBP list)

Introduced Pine Sawfly in Montgomery Co., Maryland (6/4/2019). (c) bvoss, some rights reserved (CC BY-NC). Photo by bvoss via iNaturalist. (MBP list)

Introduced Pine Sawfly in Montgomery Co., Maryland (6/4/2019). (c) bvoss, some rights reserved (CC BY-NC). Photo by bvoss via iNaturalist. (MBP list)

Introduced Pine Sawfly in Howard Co., Maryland (5/28/2021). (c) kaitlinrow, some rights reserved (CC BY-NC). Photo by kaitlinrow via iNaturalist. (MBP list)


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