scholarly journals After the Decline: What Maintains Low Winter Moth Density after Successful Biological Control?

10.2307/5556 ◽  
1994 ◽  
Vol 63 (2) ◽  
pp. 392 ◽  
Author(s):  
Jens Roland
Keyword(s):  
Biological Control ◽  
Winter Moth

Biological Control of the Winter Moth

1995 ◽  
Vol 40 (1) ◽  
pp. 475-492 ◽  
Author(s):  
J Roland ◽  
D G Embree
Keyword(s):  
Biological Control ◽  
Winter Moth

FINAL-INSTAR LARVAE OF NATIVE HYMENOPTEROUS AND DIPTEROUS PARASITES OF OPEROPHTERA SPP. (LEPIDOPTERA: GEOMETRIDAE) IN BRITISH COLUMBIA

1981 ◽  
Vol 113 (1) ◽  
pp. 45-55 ◽  
Author(s):  
David R. Gillespie ◽  
Thelma Finlayson
Keyword(s):  
Biological Control ◽  
British Columbia ◽  
Exotic Species ◽  
Vancouver Island ◽  
Winter Moth ◽  
Host Complex

AbstractNine species of parasites and one hyperparasite were reared from a complex of the brace spanworm, Operophtera bruceata (Hulst), and the European winter moth, O. brumata (L.), collected in the Victoria area of Vancouver Island, British Columbia, in 1976 and 1977. Parasitism of the host complex was about 1.5%, mainly due to an unnamed species of Phobocampe (Ichneumonidae). All species of parasites taken in British Columbia on the two hosts have congeneric counterparts on O. brumata in Europe as listed by Wylie (1961); thus the release of exotic species in addition to the two already released in British Columbia may not enhance the biological control of O. brumata. Descriptions and illustrations of cephalic structures of final-instar larvae of the parasites and a key for their separation are given.

Winter Moth, Operophtera brumata (L) (Lepidoptera: Geometridae) and Its Biological Control

2008 ◽  
pp. 4276-4279
Author(s):  
Y. S. Chow ◽  
Virendra K. Gupta ◽  
Sue W. Nicolson ◽  
Harley P. Brown ◽  
Vincent H. Resh ◽  
...  
Keyword(s):  
Biological Control ◽  
Operophtera Brumata ◽  
Winter Moth

The Role of Introduced Parasites in the Control of the Winter Moth in Nova Scotia

1966 ◽  
Vol 98 (11) ◽  
pp. 1159-1168 ◽  
Author(s):  
D. G. Embree
Keyword(s):  
Biological Control ◽  
Nova Scotia ◽  
Functional Response ◽  
Response Curves ◽  
Operophtera Brumata ◽  
Winter Moth ◽  
History Of ◽  
Regulatory Properties

AbstractThe history of the winter moth, Operophtera brumata (Linnaeus), a geometrid introduced into Nova Scotia, is reviewed and an assessment is made of two introduced parasites: a tachinid, Cyzenis albicans (Fallen), and an ichneumonid, Agrypon flaveolatum (Gravenhorst). Functional response curves of both species are discussed, particularly the atypical S-shaped curve of C. albicans, which demonstrates regulatory properties. Biological control efforts to date have been successful but a virus that appeared in winter moth populations may change initial relationships between the introduced parasites and the host.

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