The Canadian Entomologist (2001) 133, 147-149

C. Vincent, B. Rancourt, M. Sarazin and U. Kuhlmann (2001)
Releases and first recovery of Lathrolestes ensator (Hymenoptera: Ichneumonidae) in North America, a parasitoid of Hoplocampa testudinea (Hymenoptera: Tenthredinidae)
The Canadian Entomologist 133 (1), 147-149
Abstract: The European apple sawfly, Hoplocampa testudinea (Klug), is a pest of apple, Malus pumila Bork. (Rosaceae), in orchards. Introduced from Europe onto Long Island, New York, in 1939, it gradually invaded the New England states (Pyenson 1943). Downes and Andison (1942) also reported the apple sawfly on Vancouver Island in 1940. In 1979, H. testudinea was discovered for the first time in southern Quebec (Paradis 1980), after which it spread throughout the apple-growing areas of this province (Vincent and Mailloux 1988). There are no published records on any natural enemies of H. testudinea in North America.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Charles Vincent, Ulrich Kuhlmann

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
new introduction of pest
Research topic(s) for beneficials or antagonists:
classical biocontrol/new introduction

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Hoplocampa testudinea	Apple (Malus)
Lathrolestes ensator (parasitoid)	Hoplocampa testudinea	Apple (Malus)