New Records of Native and Non-Native Bark and Ambrosia Beetles (Coleoptera: Curculionidae: Scolytinae) in Illinois

From 2009–2012, we conducted surveys with Lindgren funnel traps for native and non-native bark and ambrosia beetles (Coleoptera: Curculionidae: Scolytinae) in northeastern Illinois. During this study, we collected a total of 10,194 bark and ambrosia beetles representing 50 species in 28 genera. Ten scolytine species not previously reported to occur in Illinois were collected during this survey. Three of these new records are species not native to North America, including Cyclorhipidion bodoanum (Reitter), Cyclorhipidion pelliculosum (Eichhoff), and Hylastinus obscurus (Marsham). Native species reported from Illinois for the first time include: Anisandrus obesus (LeConte), Dryocoetes autographus (Ratzeburg), Hylocurus spadix Blackman, Pityophthorus cariniceps LeConte, Pityophthorus puberulus (LeConte), Pseudothysanoes lecontei Blackman, and Xyleborinus gracilis (Eichhoff). The results presented here will update and improve the somewhat limited information regarding the overall bark and ambrosia beetle community in northeastern Illinois

Pleistocene reptile swim traces confirmed from South Africa’s Cape south coast

Large Pleistocene reptile tracks and traces were described from the Cape south coast of South Africa in 2020, including ‘probable swim traces’. These trace fossils were found on loose slabs and blocks of the Klein Brak Formation. Subsequently, another surface has become exposed on this coastline, also on a loose slab. It exhibits more definitive evidence of swim traces in epirelief, probably made by the Nile crocodile (Crocodylus niloticus) or water monitor (Varanus niloticus), although a chelonian origin cannot be excluded. Length of a possible crocodylian trackmaker was estimated from measurements of interdigital distance in the swim traces. These provide a compelling example of reptile swim traces from Africa.Significance: Pleistocene reptile swim traces have now been confidently confirmed from the Cape south coast of South Africa. The findings complement the suite of recently identified large reptile tracks. Trackmaker size can be estimated from the dimensions of reptile swim traces. These are the first compelling non-dinosaurian reptile swim traces to be described from Africa

Northeast Missouri crops experiment field : second annual report, 1925

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Management of Korean lespedeza

Caption title.Digitized 2006 AES MoU."December, 1940.""Korean lespedeza gives best results where left on the land year after year. This is true under all soil conditions, and it is especially important on the less productive land. Lower- production costs are reached by taking advantage of the ability of lespedeza to reseed itself heavily under almost any use of the crop. By this annual reseeding habit a renewed stand every spring is practically assured."--Page 1

Corn in Missouri. II, Field methods that increase the corn crop

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Corn selection for exhibit purposes

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Orchard grass in Missouri

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Meadow and pasture management in the Ozark Region of Missouri

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Growing orchard grass in south Missouri

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