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purple loosestrife biological control


9 Images
0002038
Bernd Blossey
Cornell University

Tonawanda Wildlife Management Area

0002030
Bernd Blossey
Cornell University

wetland dominated; Tonawanda Wildlife Management Area

0002031
Bernd Blossey
Cornell University

mating pair

0002032
Bernd Blossey
Cornell University

defoliated purple loosestrife plant surrounded by non-attacked jewelweed, Impatians spp.

0002033
Bernd Blossey
Cornell University

on leaf

0002034
Bernd Blossey
Cornell University

destroyed rootstock with frass of larva and emerging new adult

0002035
Bernd Blossey
Cornell University

on flower-spike

0002036
Bernd Blossey
Cornell University

infestation before release of Galerucella spp. and Hylobius transversovittatus (note cages); Tonawanda Wildlife Management Area

0002037
Bernd Blossey
Cornell University

after control through combination of Galerucella spp. and Hylobius transversovittatus; Tonawanda Wildlife Management Area