A Review of the Parasitic Wasps of the Ichneumonid Genus Exenterus Hartig

A Review of the Parasitic Wasps of the Ichneumonid Genus Exenterus Hartig
Title A Review of the Parasitic Wasps of the Ichneumonid Genus Exenterus Hartig PDF eBook
Author Robert Asa Cushman
Publisher
Pages 16
Release 1940
Genre Agriculture
ISBN

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This review of parasitic wasps is motivated by the discovery within the past several years that three European species of pine-feeding sawflies have become established in North America, which prompted interest in the parasites of the sawflies in this group.

A Review of the Parasitic Wasps of the Ichneumonid Genus Exenterus Hartig

A Review of the Parasitic Wasps of the Ichneumonid Genus Exenterus Hartig
Title A Review of the Parasitic Wasps of the Ichneumonid Genus Exenterus Hartig PDF eBook
Author Robert Asa Cushman
Publisher
Pages 712
Release 1940
Genre Exenterus
ISBN

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This review of parasitic wasps is motivated by the discovery within the past several years that three European species of pine-feeding sawflies have become established in North America, which prompted interest in the parasites of the sawflies in this group.

Miscellaneous Publication

Miscellaneous Publication
Title Miscellaneous Publication PDF eBook
Author Ellen Kay Miller
Publisher
Pages 122
Release 1992
Genre Agriculture
ISBN

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Experiment Station Record

Experiment Station Record
Title Experiment Station Record PDF eBook
Author
Publisher
Pages 1044
Release 1941
Genre Agriculture
ISBN

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Experiment Station Record

Experiment Station Record
Title Experiment Station Record PDF eBook
Author U.S. Office of Experiment Stations
Publisher
Pages 1046
Release 1941
Genre Agricultural experiment stations
ISBN

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List of Available Publications of the United States Department of Agriculture

List of Available Publications of the United States Department of Agriculture
Title List of Available Publications of the United States Department of Agriculture PDF eBook
Author United States. Department of Agriculture
Publisher
Pages 238
Release
Genre Agriculture
ISBN

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Insects

Insects
Title Insects PDF eBook
Author
Publisher
Pages 28
Release 1947
Genre Government publications
ISBN

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