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S. J. Roberts

Illinois Natural History Survey

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Publication

Featured researches published by S. J. Roberts.

Journal of Economic Entomology | 1970

Predicting Spring Hatch of the Alfalfa Weevil

S. J. Roberts; Jerald R. Dewitt; Edward J. Armbrust

Environmental Entomology | 1972

Supercooling Points of Several Species of Lepidoptera Found on Soybeans

S. J. Roberts; Edward J. Armbrust; D. K. Sell

Journal of Economic Entomology | 1970

Feeding Behavior of Alfalfa Weevil Larvae Parasitized by Bathyplectes curculionis

Edward J. Armbrust; S. J. Roberts; C. E. White

Great Lakes Entomologist | 1996

Epizootiology of the Fungal Pathogen, Zoophthora Phytonomi (Zygomycetes: Entomophthorales) in Field Populations of Alfalfa Weevil (Coleoptera: Curculionidae) Larvae in Illinois

Marilyn J. Morris; S. J. Roberts; Joseph V. Maddox; Edward J. Armbrust

Environmental Entomology | 1993

Distribution and Abundance of Two Alfalfa Weevil (Coleoptera: Curculionidae) Larval Parasitoids in Illinois

H. Oloumi-Sadeghi; Kevin L. Steffey; S. J. Roberts; Joseph V. Maddox; Edward J. Armbrust

Environmental Entomology | 1974

Developmental Rate and Population Dynamics of Alfalfa Weevil Larvae

F. Hsieh; S. J. Roberts; Edward J. Armbrust

Journal of Economic Entomology | 1985

Impact of Insecticide Applications at Various Alfalfa Growth Stages on Potato Leafhopper (Homoptera: Cicadellidae) Abundance and Crop Damage

William O. Lamp; S. J. Roberts; Kevin L. Steffey; Edward J. Armbrust

Journal of Economic Entomology | 1988

Changes in Morphological Stage of Development, Canopy Structure, and Root Nonstructural Carbohydrate Reserves of Alfalfa Following Control of Potato Leafhopper (Homoptera: Cicadellidae) and Weed Populations

H. Oloumi-Sadeghi; Luis R. Zavaleta; S. J. Roberts; Edward J. Armbrust; G. Kapusta

Great Lakes Entomologist | 1979

Insect predators of the alfalfa weevil and clover root curculio (Coleoptera: Curculionidae) during fall field reentry.

R. J. Barney; S. J. Roberts; R. D. Pausch; Edward J. Armbrust

Journal of Economic Entomology | 1969

Evidence of a Second Generation of the Alfalfa Weevil in Southern Illinois

C. E. White; Edward J. Armbrust; Jerald R. Dewitt; S. J. Roberts

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Collaboration

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Edward J. Armbrust

Illinois Natural History Survey

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R. J. Barney

Illinois Natural History Survey

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Joseph V. Maddox

Illinois Natural History Survey

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C. E. White

Illinois Natural History Survey

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Jerald R. Dewitt

Illinois Natural History Survey

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Kevin L. Steffey

Illinois Natural History Survey

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R. D. Pausch

Illinois Natural History Survey

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D. K. Sell

Illinois Natural History Survey

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D. P. Bartell

Illinois Natural History Survey

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F. Hsieh

Illinois Natural History Survey

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